Principles of Physics: A Calculus-Based Text, Hybrid (with Enhanced WebAssign Printed Access Card)
5th Edition
ISBN: 9781305586871
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 8, Problem 16P
(a)
To determine
The initial speed of the four cars.
(b)
To determine
The change in the potential energy within the body of the actor.
(c)
To determine
The relationship between the process of collision here and in problem 13.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
You're driving along at 25m/s with your aunt's valuable antiques in the back of your pickup truck
when suddenly you see a giant hole in the road 55 m ahead of you. Fortunately, your foot is
right beside the brake and your reaction time is zero! If the coefficients of friction are μs =0.6
and uk =0.3, how much time does it take you to stop if you don't want the antiques to slide and
be damaged?
While driving to work one day, I was holding my coffee mug in my left
hand while changing the radio station with my right hand. Then my cell
phone rang, so I placed the mug on the flat part of my dashboard.
Then, believe it or not, a deer ran out of the woods and onto the road
right in front of me. Fortunately, my reaction time was zero, and I was
able to stop from a speed of 17 m/s in a mere 50 m, just barely
avoiding the deer, without the coffee mug sliding. The mug (with
coffee) had a mass of 550 g, and the mass of the deer was 150 kg.
Part A
What is the minimum possible value of the coefficient of static friction between the mug and the dashboard?
Hg =
Big Boris (90kg) skates backward, 1.0 meter
ahead of small skater Sofia (45 kg) , holding her
hand as they travel +3.0 /s .
At the 30-second mark, Boris starts pulling Sofia
past him, so that by time 32.0 s she is travelling
4.333 m/s along the ice.
What was Sofia's average acceleration during
this move, relative to the ice?
+0.667 /s²
+2.167 ™/?
+0.135 /s
+1.333 m/2
+1.00 /s²
+2.0 m/g2
Chapter 8 Solutions
Principles of Physics: A Calculus-Based Text, Hybrid (with Enhanced WebAssign Printed Access Card)
Ch. 8.1 - Two objects have equal kinetic energies. How do...Ch. 8.1 - Your physical education teacher throws a baseball...Ch. 8.3 - Prob. 8.3QQCh. 8.4 - A table-tennis ball is thrown at a stationary...Ch. 8.6 - A baseball bat of uniform denisty is cut at the...Ch. 8.7 - Prob. 8.6QQCh. 8 - Prob. 1OQCh. 8 - A head-on, elastic collision occurs between two...Ch. 8 - Prob. 3OQCh. 8 - A 57.0-g tennis ball is traveling straight at a...
Ch. 8 - A 5-kg cart moving to the right with a speed of 6...Ch. 8 - A 2-kg object moving to the right with a speed of...Ch. 8 - The momentum of an object is increased by a factor...Ch. 8 - The kinetic energy of an object is increased by a...Ch. 8 - Prob. 9OQCh. 8 - Prob. 10OQCh. 8 - Prob. 11OQCh. 8 - Prob. 12OQCh. 8 - Prob. 13OQCh. 8 - A ball is suspended by a string that is tied to a...Ch. 8 - A massive tractor is rolling down a country road....Ch. 8 - Prob. 16OQCh. 8 - Prob. 17OQCh. 8 - Prob. 18OQCh. 8 - Prob. 1CQCh. 8 - Prob. 2CQCh. 8 - A bomb, initially at rest, explodes into several...Ch. 8 - Prob. 4CQCh. 8 - Prob. 5CQCh. 8 - A juggler juggles three balls in a continuous...Ch. 8 - Prob. 7CQCh. 8 - Prob. 8CQCh. 8 - Prob. 9CQCh. 8 - Prob. 10CQCh. 8 - Prob. 11CQCh. 8 - Prob. 12CQCh. 8 - An open box slides across a frictionless, icy...Ch. 8 - Prob. 1PCh. 8 - Prob. 2PCh. 8 - Prob. 3PCh. 8 - Prob. 4PCh. 8 - Prob. 5PCh. 8 - A girl of mass mg is standing on a plank of mass...Ch. 8 - Two blocks of masses m and 3m are placed on a...Ch. 8 - Prob. 8PCh. 8 - A 3.00-kg steel ball strikes a wall with a speed...Ch. 8 - A tennis player receives a shot with the ball...Ch. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - In a slow-pitch softball game, a 0.200-kg softball...Ch. 8 - Prob. 15PCh. 8 - Prob. 16PCh. 8 - Prob. 17PCh. 8 - Prob. 18PCh. 8 - Two blocks are free to slide along the...Ch. 8 - As shown in Figure P8.20, a bullet of mass m and...Ch. 8 - Prob. 21PCh. 8 - A tennis ball of mass mt is held just above a...Ch. 8 - Prob. 23PCh. 8 - Prob. 24PCh. 8 - An object of mass 3.00 kg, moving with an initial...Ch. 8 - Prob. 26PCh. 8 - Prob. 27PCh. 8 - Prob. 28PCh. 8 - A billiard ball moving at 5.00 m/s strikes a...Ch. 8 - Prob. 30PCh. 8 - Prob. 31PCh. 8 - Prob. 32PCh. 8 - Prob. 33PCh. 8 - Prob. 34PCh. 8 - Prob. 35PCh. 8 - A water molecule consists of an oxygen atom with...Ch. 8 - Prob. 37PCh. 8 - Prob. 38PCh. 8 - A 2.00-kg particle has a velocity (2.00i3.00j)m/s,...Ch. 8 - Prob. 40PCh. 8 - Prob. 41PCh. 8 - Prob. 42PCh. 8 - Prob. 43PCh. 8 - Prob. 44PCh. 8 - Prob. 45PCh. 8 - A rocket has total mass Mi = 360 kg, including...Ch. 8 - A model rocket engine has an average thrust of...Ch. 8 - Two gliders are set in motion on a horizontal air...Ch. 8 - Prob. 49PCh. 8 - Prob. 50PCh. 8 - Prob. 51PCh. 8 - Prob. 52PCh. 8 - Prob. 53PCh. 8 - Prob. 54PCh. 8 - A small block of mass m1 = 0.500 kg is released...Ch. 8 - Prob. 56PCh. 8 - A 5.00-g bullet moving with an initial speed of v...Ch. 8 - Prob. 58PCh. 8 - Prob. 59PCh. 8 - A cannon is rigidly attached to a carriage, which...Ch. 8 - Prob. 61PCh. 8 - Prob. 62PCh. 8 - George of the Jungle, with mass m, swings on a...Ch. 8 - Sand from a stationary hopper falls onto a moving...Ch. 8 - Prob. 65P
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
- letter d and earrow_forwardA space probe of mass 5.00 x 104 kg is traveling at 1.10 x 104 m/s through deep space. No forces act on the probe except that generated by its own engine. No forces act on the probe except that generated by its own engine. The engine exerts a constant external force of 4.00 x 105 N, directed parallel to the displacement, which is 2.50 x 106 m. Determine the final velocity of the probe.arrow_forwardTwo fan carts are on parallel inclined tracks are facing opposite directions. At t=0, the carts are 2.88 m apart with the fans on and they are both given a sharp push toward each other against the direction the fans are pushing them. Cart A begins (after the push) with a speed of 1.35 m/s to the right and has an acceleration of 0.44 m/s? to the left. Cart B begins (after the push) with a speed of 1.05 m/s to the left and has an acceleration to the right of 0.52 m/s?. (Hint: Keep your positive and negative directions consistent for both carts.) A a) At what two times do the two cars pass each other? b) What are the two positions at which the cars pass each other? c) What is the velocity of each car when they pass each other? d) Graph the motion of each on the position vs. time graphs and velocity vs. time graphs on the next page. time (s) time (s) (w) uojiisod velocity (m/ş)arrow_forward
- A hot-air balloon weighing 130 kg carries a 21-kg basket and is descending with a constant velocity of 21.0 m/s. A 0.9-kg rock is thrown from the basket at an initial velocity of 13.0 m/s perpendicular to the path of the hot-air balloon, as measured relative to a person at rest in the basket. The stone was observed to hit the ground after 6.00 s. How high was the balloon when the rock was thrown out and when the rock hit the ground?arrow_forwardWhen an object accelerates at 9.8 m/s2 (or 32 ft/s2), we say it accelerates with 1 g. This is true whether the object is falling under gravity, or due to something else. Using the constant-acceleration approximation, determine how many g's are involved in a football kickoff. The ball is initially at rest on the tee. After being in contact with the kicker’s foot for only 8 ms, it leaves the kicker’s foot at 118 ft/s. Round the final answer to the nearest whole number.arrow_forwarda (m/s?) В 2. SpaceX engineers is planning to build a 2-stage rocket which has a-t graph as shown. By their design, the first stage A will burn out after 20 seconds and then the second stage B will A 30 22 ignite. Plot the v-t and s-t graphs which describe the two-stage motion of the missile for 0st< 30s. t (s) 20 30arrow_forward
- An aging coyote (m = 42.1 kg) cannot run fast enough to catch a roadrunner (m = 16.3 kg). He purchases a set of jet-powered roller skates, which proved a constant horizontal acceleration of 15.2 m/s2. The coyote starts at rest 73.2 m from the edge of a cliff at the instant the roadrunner zips past in the direction of the cliff. Hint: their initial positions at the top of the cliff are the same. a. Determine the minimum constant speed the roadrunner must have to reach the cliff before the coyote. b. At the edge of the cliff, the roadrunner escapes by making a sudden turn, while the coyote continues straight ahead. The coyote’s skates remain horizontal and continue to operate while he is in flight, so his acceleration while he is in the air is (15.2i – 9.80j) m/s2. The cliff is 127 m above the flat floor of the desert. Determine how far from the base of the vertical cliff the coyote lands. c. Determine the components of the coyote’s impulse upon impact.arrow_forwardA biomechanics forensics expert is attempting to determine the events that led to an automobile accident in which one car rear-ended another. The two cars were originally travelling in the same direction. Car A was traveling at a speed of 42 km/hr when it was struck by Car B, which was traveling at 65 km/hr. Following the collision, the two cars became entangled and continued to travel as one unit with a speed of 53 km/hr. From an interview with the driver of Car A, the forensics expert learned that the mass of Car A is 575 kg. What is the mass of Car B (in kg)? Express your answer in kilograms to one decimal place (do not include units in your answer). Your Answer:arrow_forwardPen and Teller decided to do a magic trick involving a marble and a ball. Penn throws the marble straight upwards from the ground with an initial velocity of v⃗ 0, marble=10 m/s j^. At the exact moment that the marble was released, Teller throws the ball with an initial velocity of v⃗ 0, ball=5 [m/s] i^+10 [m/s] j^. Which of the following is true about the two objects? Select one: a. The ball will reach the ground first. b. Both objects will reach the ground at the same time. c. The marble will reach a greater height. d. The ball will reach the ground last.arrow_forward
- A friend claims that her car can accelerate from a stop to 60 mi/h (26.8 m/s) in 7.5 s, but the speedometer is broken. You decide to test her claim by riding with her, and you bring along a small metal washer, a short length of string, a protractor, and a pen that can write on glass. Sitting in the passenger seat, you tie the washer to one end of the string and then let the string-washer combination hang straight down by rolling up the passenger-door window to pinch the free end of the string. While the car is stationary, you draw a line on the window alongside the vertical string. ▬▬ Review How large is the angle the string makes with the line you drew if the car accelerates at the rate your friend claims? 0= ΠΕ| ΑΣΦ Submit Part B Request Answer ? IVE ΑΣΦ 5 P Pearson If an identical washer does not slide on the horizontal dashboard while this is happening, what is the ratio of the frictional force to the gravitational force exerted on this washer? 11 of 22 ? Copyright © 2023 Pearson…arrow_forwardTwo people, one with mass 50 kg and one with mass 60kg are sitting opposite each other in rolling chairs and each person puts their feet against the other person's feet. They then push off horizontally. The lighter person accelerates (temporarily) backward at 1.2 m/s2. What is the magnitude of the acceleration that the heavier person experiences?arrow_forwardAnswer both parts of the questionarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Momentum | Forces & Motion | Physics | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=DxKelGugDa8;License: Standard YouTube License, CC-BY