Physics: Principles with Applications
7th Edition
ISBN: 9780321625922
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 5, Problem 1P
A child sitting 1.20 m from the center of a merry-go-round moves with a speed of 1.10 m/s. Calculate (a) the centripetal acceleration of the child and (b) the net horizontal force exerted on the child (mass = 22.5 kg)
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule03:04
Students have asked these similar questions
Because the Earth rotates about its axis, a point on the equator experiences a centripetal acceleration of 0.033 7 m/s2, whereas a point at the poles experiences no centripetal acceleration. If a person at the equator has a mass of 75.0 kg, calculate (a) the gravitational force (true weight) on the person and (b) the normal force (apparent weight) on the person. (c) Which force is greater? Assume the Earth is a uniform sphere and take g = 9.800 m/s2.
A spacecraft flying horizontally over the surface of the moon at an elevation of 1500m with a speed of 350m/s, drops a package with a mass of 1200kg to astronauts on the surface. Use gm= 1.6m/s2 for the acceleration due to gravity on the Moon.
a)How long does it take the package to hit the surface after it is dropped?
b)How far ahead (distance) of the package’s landing spot should the package be released?
c)What is the velocity of the package just before it hits the surface?
d)What is the magnitude of the velocity of the package just before it hits the surface of the Moon?
When the Moon is directly overhead at sunset, the force by Earth on the Moon,
FEM,
is essentially at 90° to the force by the Sun on the Moon,
FSM,
as shown below. Given that
FEM = 1.98 ✕ 1020 N
and
FSM = 4.36 ✕ 1020 N,
all other forces on the Moon are negligible, and the mass of the Moon is 7.35 ✕ 1022 kg, determine the magnitude of the Moon's acceleration (in m/s2).
Chapter 5 Solutions
Physics: Principles with Applications
Ch. 5 - You revolve a ball around you in a horizontal...Ch. 5 - A space station revolves around the Earth as a...Ch. 5 - How many '‘accelerators” do you have in your car?...Ch. 5 - A car rounds a curve at a steady 50 km/h. If it...Ch. 5 - Will the acceleration of a car be the same when a...Ch. 5 - Prob. 4QCh. 5 - Prob. 5QCh. 5 - Prob. 6QCh. 5 - Prob. 7QCh. 5 - Prob. 8Q
Ch. 5 - Prob. 9QCh. 5 - 10. A car maintains a constant speed v as it...Ch. 5 - Prob. 11QCh. 5 - Prob. 12QCh. 5 - Does an apple exert a gravitational force on the...Ch. 5 - Why is more fuel required for a spacecraft to...Ch. 5 - Would it require less speed to launch a satellite...Ch. 5 - Prob. 16QCh. 5 - The Sun is below us at midnight, nearly in line...Ch. 5 - 18. When will your apparent weight be the...Ch. 5 - Prob. 19QCh. 5 - Prob. 20QCh. 5 - Is the centripetal acceleration of Mars in its...Ch. 5 - The mass of the '‘planet" Pluto was not known...Ch. 5 - Prob. 23QCh. 5 - Prob. 1MCQCh. 5 - Prob. 2MCQCh. 5 - Prob. 3MCQCh. 5 - Prob. 4MCQCh. 5 - Prob. 5MCQCh. 5 - Prob. 6MCQCh. 5 - Prob. 7MCQCh. 5 - Prob. 8MCQCh. 5 - Prob. 9MCQCh. 5 - Prob. 10MCQCh. 5 - Prob. 11MCQCh. 5 - 'A penny is placed on a turntable which is...Ch. 5 - A child sitting 1.20 m from the center of a...Ch. 5 - A jet plane traveling 1890 km/h (525 m/s) pulls...Ch. 5 - Prob. 3PCh. 5 - What is the magnitude of the acceleration of a...Ch. 5 - 5. (II) A 0.55-kg ball, attached to the end of a...Ch. 5 - How fast (in rpm) must a centrifuge rotate if a...Ch. 5 - Prob. 7PCh. 5 - How large must the coefficient of static friction...Ch. 5 - Prob. 9PCh. 5 - Prob. 10PCh. 5 - How many revolutions per minute would a...Ch. 5 - Prob. 12PCh. 5 - Prob. 13PCh. 5 - Prob. 14PCh. 5 - Prob. 15PCh. 5 - Prob. 16PCh. 5 - Prob. 17PCh. 5 - Prob. 18PCh. 5 - Prob. 19PCh. 5 - Prob. 20PCh. 5 - Prob. 21PCh. 5 - Prob. 22PCh. 5 - Prob. 23PCh. 5 - Determine the tangential and centripetal...Ch. 5 - Prob. 25PCh. 5 - For each of the cases described below, sketch and...Ch. 5 - Prob. 27PCh. 5 - Calculate the force of Earth's gravity on a...Ch. 5 - At the surface of a certain planet, the...Ch. 5 - At what distance from the Earth will a spacecraft...Ch. 5 - Prob. 31PCh. 5 - Prob. 32PCh. 5 - Prob. 33PCh. 5 - Prob. 34PCh. 5 - Prob. 35PCh. 5 - Prob. 36PCh. 5 - Prob. 37PCh. 5 - Prob. 38PCh. 5 - Prob. 39PCh. 5 - Prob. 40PCh. 5 - 41. (II) Every few hundred years most of the...Ch. 5 - 42 (II) Four 7.5-kg spheres are located at the...Ch. 5 - 43. (II) Determine the distance from the Earth's...Ch. 5 - 44.(II) A certain neutron star has five times the...Ch. 5 - 45. (I) A space shuttle releases a satellite into...Ch. 5 - 46. (I) Calculate the speed of a satellite moving...Ch. 5 - Prob. 47PCh. 5 - Prob. 48PCh. 5 - Calculate the period of a satellite orbiting the...Ch. 5 - Prob. 50PCh. 5 - What will a spring scale read for the weight of a...Ch. 5 - Prob. 52PCh. 5 - Prob. 53PCh. 5 - A Ferris wheel 22.0 m in diameter rotates once...Ch. 5 - At what rate must a cylindrical spaceship rotate...Ch. 5 - (a) Show that if a satellite orbits very near the...Ch. 5 - Neptune is an average distance of 4.5 x 109 km...Ch. 5 - The asteroid Icarus, though only a few hundred...Ch. 5 - Prob. 59PCh. 5 - Determine the mass of the Earth from the known...Ch. 5 - Prob. 61PCh. 5 - Prob. 62PCh. 5 - Prob. 63PCh. 5 - Prob. 64PCh. 5 - Prob. 65PCh. 5 - Prob. 66PCh. 5 - Prob. 67GPCh. 5 - Prob. 68GPCh. 5 - Prob. 69GPCh. 5 - Prob. 70GPCh. 5 - Prob. 71GPCh. 5 - Prob. 72GPCh. 5 - Prob. 73GPCh. 5 - Prob. 74GPCh. 5 - Two equal-mass stars maintain a constant distance...Ch. 5 - How far above the Earth's surface will the...Ch. 5 - Prob. 77GPCh. 5 - Prob. 78GPCh. 5 - The rings of Saturn are composed of chunks of ice...Ch. 5 - Prob. 80GPCh. 5 - Prob. 81GPCh. 5 - Prob. 82GPCh. 5 - Prob. 83GPCh. 5 - Prob. 84GPCh. 5 - A satellite of mass 5500 kg orbits the Earth and...Ch. 5 - Prob. 86GPCh. 5 - Prob. 87GPCh. 5 - Prob. 88GPCh. 5 - Prob. 89GPCh. 5 - Prob. 90GP
Additional Science Textbook Solutions
Find more solutions based on key concepts
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
A student holds an inexpensive sonic range finder and uses the range finder to find the distance to the wall. T...
University Physics Volume 1
A ball with an initial velocity of 10 m/s moves at an angle 60° above the +x -direction. The ball hits a vertic...
College Physics
The diagrams at right show two identical gliders that move to the right without friction. The hands exert ident...
Tutorials in Introductory Physics
At the right is a sketch showing one of the atoms in the diffuse, cool cloud of gas described in the previous q...
Lecture- Tutorials for Introductory Astronomy
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- The gravitational force exerted on a baseball is 2.21 N down. A pitcher throws the ball horizontally with velocity 18.0 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 170 ms. The ball starts from rest, (a) Through what distance does it move before its release? (b) What are the magnitude and direction of the force the pitcher exerts on the hall?arrow_forwardProblem (1): An 5-kg object moves around a circular track with a radius of 18 cm with a constant speed of 6 m/s. Find (a) The magnitude and direction of the acceleration of the object. (b) The net force acting upon the object causing this acceleration.arrow_forwardWhen the Moon is directly overhead at sunset, the force by Earth on the Moon, FEM , is essentially at 90° to the force by the Sun on the Moon, FSM , as shown below. Given that FEM = 1.98 × 1020 N and FSM = 4.36 × 1020 N, all other forces on the Moon are negligible, and the mass of the Moon is 7.35 × 1022 kg, determine the magnitude of the Moon’s acceleration.arrow_forward
- There are two forces on the 2.30 kg box in the overhead view of the figure but only one is shown. For F - 20.3 N, a = 12.1 m/s2, and e- 36.8°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative angle measured from the +x direction.) (a) Number -36.97 i+ -22.3 į Units (b) Number 43.16 Units N (c) Number 149 Units (degrees)arrow_forwardA basketball player jumps straight up for a ball. To do this, he lowers his body 0.300 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.900 m above the floor. (a) Calculate his velocity when he leaves the floor. (b) Calculate his acceleration while he is straightening his legs. He goes from zero to the velocity found in part (a) in a distance of 0.300 m. (c) Calculate the force he exerts on the floor to do this, given that his mass is 110 kg.arrow_forwardProblem 3: A rightward force of 25 N is applied to a 4-kg object to move it across a rough surface with a rightward acceleration of 2.5 m/s/s. Use the diagram to determine the gravitational force, normal force, frictional force, net force, and the coefficient of friction between the object and the surface. (Neglect air resistance.) Fnorm Friet= Fapp = 25 N "app Fgrav m = 4 kg a = 2.5 m/s/s, right Fnet=arrow_forward
- A car is driving along a level and unbanked circular track of diameter d=0.54km at a constant speed of v=21.2m/s. Write an expression for the magnitude of the acceleration of the car in terms of the given parameters.What is the magnitude, in meters per squared second, of the acceleration of the car?Write an expression for the minimum coefficient of friction between the car's tires and the road that is required in order to keep the car going in a circle in terms of the given parameters.What is the value of the minimum coefficient of friction between the car's tires and the road that is required in order to keep the car going in a circle?arrow_forwardThere are two forces on the 2.30 kg box in the overhead view of the figure but only one is shown. For F 20.3 N, a = 12.1 m/s2, and e= 36.8°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative angle measured from the +x direction.) (a) Number -36.97 i+ į Units -22.3 (b) Number 43.16 Units N (c) Number 31 * (degrees) Unitsarrow_forwardTwo teams of nine members each engage in a tug of war. Each of the first team's members has an average mass of 68 kg and exerts an average force of 1350 N horizontally. Each of the second team's members has an average mass of 73 kg and exerts an average force of 1375 N horizontally. (a) What is the acceleration (in m/s? in the direction the heavy team is pulling) of the two teams? 0.18 v m/s? in the direction the heavy team is pulling (b) What is the tension (in N) in the section of rope between the teams? 12639.6 X Narrow_forward
- An electron (mass = 9.11 X 10-31 kg) leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, which is 2.70cm away. It reaches the grid with a speed of 3.30 X 106 m/s. If the accelerating force is constant, compute (a) %3D the acceleration (b) the time to reach the grid (c) The net force, in Newtons. Ignore the gravitational force on the electron.arrow_forwardAn object of mass m-0.500 kg is suspended from the ceiling of an accelerating truck as shown in the figure. Taking a- 3.00 mis, the angle that the string makes with the vertical is elosest to O 0° O 34° O 22° O 45° O 17°arrow_forwardA firefighter with a weight of 7 N slides down a vertical pole with an acceleration of 3.00 m/s, directed downward. What are the magnitudes and directions of the vertical forces (a) on the firefighter due to the pole and (b) on the pole due to the firefighter?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Gravitational Force (Physics Animation); Author: EarthPen;https://www.youtube.com/watch?v=pxp1Z91S5uQ;License: Standard YouTube License, CC-BY