Answered: 1. A 38-kg boy is rollerskating at a…

1. A 38-kg boy is rollerskating at a speed of 1.8 m/s when he bumps against a box. The box slows the boy's speed to 1.2 m/s in 0.40 s. What is the force of the boy against the box?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: Mary applies a force of 70 N to push a box with an acceleration of 0.60 m/s2. When she increases the…

A: The forces acting on the box are the force applied by Mary in the direction of motion of box and…

Q: arger force? inee bs oth

Q: A girl with a mass of 52kg rides a skateboard with a mass 1.5kg. She uses her foot to apply a force…

A: Given: The mass of the girl is 52 kg. The mass of the skateboard is 1.5 kg. The acceleration of the…

Q: A froghopper is a 0.5 cm-long insect which has a mass of about 12 mg. A typical froghopper can jump…

Q: The two masses in the figure are released from rest. After the 5.0 kg mass has fallen 1.5 m, it is…

A: According to the kinematics equation, find the acceleration. Substitute the values,

Q: 13. After completing a jump. Ice skater glides across slick ice, slowed by 60 N frictional force.…

A: 13. Given, frictional force = 60 Ncoefficient of kinetic friction , μk = 0.1 Let the mass be m then…

Q: Your forehead can withstand a force of about 6.0 kN before fracturing, while your cheekbone can only…

Q: Mary applies a force of 70 N to push a box with an acceleration of 0.60 m/s2. When she increases the…

Q: A particle of mass m traveling horizontally with initial speed v0 encounters a dissipative force f…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: An object of mass m is initially at rest. After a force of magnitude F acts on it for a time T, the…

Q: Three forces given by F, = (6î + 2)N,F2 = ( î – 3j)N, and F3 = (3 f)N, act on an object to give it…

Q: Two masses, mj- 6 kg and m2 =4 kg, are connected by a light cord passing over a frictionless,…

A: Consider the following diagram:

Q: A 2550 kg car traveling to the north is slowed down from an initial velocity of 19.5 m/s by a 5750 N…

A: Using newtons second law Fnet=ma And using first equation of motion V=u+at

Q: Your mass is 86.8 kg, and the sled s mass is 17.2 kg. The sled is moving by itself on the ice at…

Q: Dorothy Joy Sasil 6 min 1. What force must act on a 500 kg mass to give it an acceleration of 0.30…

A: Given data: - The magnitude of the mass is m = 500 kg. The acceleration of the mass is a = 0.30…

Q: You are in charge of improving the safety of a carnival ride. The ride involves a 165 kg cart…

Q: Spaceman Spiff needs to turn his 700 kg rocket and go in the opposite direction to escape the Zoks.…

A: Given : m = 700 kg vi = -3710 m/s (negative because moving in opposite direction) vf = 5781 m/s F =…

Q: 4.0 kg block rests at the edge of a platform that is 20 m above level ground. The block is launched…

A: Given Initial vertical displacement is y0=20 m Final vertical displacement is y=0 Initial vertical…

Q: A 1.5-kg mass has an acceleration of (4.0i - 3.0j) m/s². Only two forces act on the mass. If one of…

Q: A car that weighs 13300.0 N is initially moving at a speed of 53.0 km/he when the brakes are applied…

A: Given data: Weight of car is, W=13300.0 N. The initial speed is, u=53 km/h=14.72 m/s. Final speed…

Q: A boat moves through the water with 2 forces acting on it. 1 is 2.1 x 10 to the third N pushed…

A: According to Newton's 2nd law of motion, force F acting on mass m moving with acceleration a is…

Q: 3. A 1.5 kg hockey puck with an initial velocity of 3 m/s slides 40 m across the ice before coming…

Q: A 68.5 kg person is standing inside an elevator. The elevator is going from the 1st floor to the 9th…

Q: 1. A child stands on a bathroom scale while riding in an elevator. The child's weight when the…

A: Note: As per the guidelines, we can only answer first question of multiple question. Sorry for the…

Q: Three identical pucks, A, B, and C, are sliding across ice at the given speeds. The forces of air…

A: a. The friction forces due to air and ice are negligible. Therefore, no force is acting along the…

Q: A spacecraft that is initially at rest turns on its engine at t=0. If its mass is 3000 kg and the…

Q: A constant force applied to object A causes it to accelerate at 5 m/s2. The same force applied to…

Q: A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is…

A: case 1the deceleration is given by

Q: Q2. Two people each have a mass of 55 kg. They are both in an elevator that has a mass of 240 kg.…

A: Given data The mass of each people is mp = 55 kg The mass of the elevator is me = 240 kg The…

Q: What is the weight of a 10.0-kg boa constrictor? O98.0 N O 10.0 N O 49.0 N O 12.5 N

A: Given data: Mass (m) = 10.0 kg Required: Weight (W)

Q: . You drop a single coffee filter of mass 1.7 g from a very tall building, and it takes 52 s to…

Q: In t-ball, young players use a bat to hit a stationary ball off a stand. The 140 g ball has about…

A: Given - mass of ball , m =140 g = 0.14 kg initial speed of ball , u = 0 m/s final speed of ball ,…

Q: 7. You put a box on a skateboard and give it a quick push with a certain force. It starts to move.…

A: The correct answer is option (e) Speed up for a little while, go at a constant speed for a while,…

Q: A 1.4 gram bullet is shot into a tree stump. It enters at a velocity of 341 m/sec and comes to rest…

A: To determine,the force on the bullet during impact.given,time to strike the stump(t)=0.00032…

Q: A rocket is descending to the surface of Mars where g = 4 m/s ^ 2 . The rocket is initially 80 m…

Q: 1.A 150.0g hockey puck is placed on the floor of a bus. The coefficient of kinetic friction between…

A: Given: The mass of the puck is 150 g. The coefficient of the kinetic friction is 0.654. The time…

Q: 24. A pickup truck with mass 980 kg is initially at rest. The truck accelerates to a speed of 95…

Q: It takes the elevator in a skyscraper 4.0 s to reach its cruising speed of 10 m/s. A 60 kg passenger…

A: Given data: Time taken by the elevator, t=4.0 s Cruising speed is v=10 m/s Mass of passenger is m=60…

Q: what is the acceleration experienced by the rock, due to this force alone?

A: Given data: The mass of a rocket is: m=4.62×104 kg The force due to rocket on the rock is: F=3300 N…

Q: The net force applied to a 3 kg mass is 12 N at a 55 degree angle relative to the positive x-axis.…

Q: ou are pushing your friend in his wheelchair. You are both taking his dog, Wrathbone, to the vet.…

A: Given: The mass of friend M = 46 kg The mass of wheelchair m = 16 kg The mass of dog md = 5 kg. The…

Q: 1. You are tasked with designing the runway on an aircraft carrier. The minimum speed for the F/A18…

A: Hey there since you have posted a question with multiple sub-division we have solved the first 3…

Question

100%

Math Practice
On a separate sheet of paper, solve the following problems.
1. A 38-kg boy is rollerskating at a speed of 1.8 m/s when he bumps
against a box. The box slows the boy's speed to 1.2 m/s in 0.40 s. What is
the force of the boy against the box?
2. An 18-kg ball rolls across a smooth floor and strikes a wall with a force
of 9.0 N. What is the recoil acceleration of the ball?
Conceptual Physics Reading and Study Workbook
■
Chapter 7

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

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

1. I'm in an elevator standing on a scale and I'm heading up, but I'm slowing down to a stop. My mass is 71 kg. But the scale I'm standing on tells me my apparent mass is 64 kg. What is my acceleration?
A student pushes a 12-kg block on a frictionless, horizontal surface. If the block is initially at rest, what is the speed of the block after the student pushes the block for 5 seconds with an acceleration of 2.0 m/s/s? O 2.0 m/s 6.0 m/s 10 m/s 60 m/s
A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is 3.56×105 kg, its speed is 73.0 m/s, and the net braking force is 4.30×105N, what is its speed 12.0 s later? How far has it traveled in this time?
Lynn is pushing a supply cart down the hallway. The cart has a mass of 39.1 kg. If she pushes the cart with a force of 26.9 N, what will be the cart’s rate of acceleration? 1.72 m/s2 0.688 m/s2 2.14 m/s2 0.515 m/s
5. A baseball is thrown upward from a height of 3 meters above Earth's surface with an initial velocity of 10m/s, and the only force acting on it is gravity. The ball has a mass of 0.15kg at Earth's surface. A. Find the velocity v(t) of the baseball at time t. B. What is its velocity after 2 seconds? C. The graph of the baseball
The horizontal position of a 4500-N car driving down a long, flat, straight road is given by the following formula, where t is measured in seconds. x(t) = (1.2 m/s³) t³ - (1.8) ² a. Use the weight of the car to find its mass. b. What is the x-component of the car's velocity, as a function of time? c. What is the x-component of the car's acceleration, as a function of time? d. What is the x-component of the net force acting on the car at time t = 0.50 s, t = 1.0 s, and t = 1.5 s?
SA3. A block is given an initial velocity of 5.00 m/s up a frictionless 20.0° incline. How far up the incline does the block slide before coming to rest? SA4. A man is pulling a crate along a concrete floor. This time, let's be specific. The crate has a mass of 100 kg and the man pulls with a force of 1 250 N. The coefficient of friction between the crate and the floor is 0.2. What is the acceleration of the crate? SA5. A horizontal force of 80 N is used to pull a 20 N wooden box moving toward the right along a horizontal, wood surface as shown. Calculate the magnitude of the frictional force acting on the box. Determine the magnitude of the force acting on the box. Determine the mass of the box. Calculate the magnitude of the acceleration of the box.
7. A bowling ball and a feather are dropped from a height of 100 ft. The bowling ball weighs 12 Ibs and the feather weighs 3 ounces. a. What is the Force (in Newtons) of both objects? b. The value of g is varies depending on what planet you are on. Bigger planets have a larger value of g. The value of g on the moon is 1.62 m/s2. Calculate the forces of these objects falling on the moon.
Your mass is 94.2 kg, and the sled s mass is 16.1 kg. The sled is moving by itself on the ice at 5.05 m/s. You parachute vertically down onto the sled, and land gently. What is the sled s velocity with you now on it? 0.85 m/s 0.74 m/s 0.44 m/s 0.96 m/s
2. Imagine you are trying to move a very heavy box, and it does not move. Then, you get a friend to help you push and it begins to slide. Explain, in terms of the quantities discussed in this investigation (Fk, тах Hs,Fk9 Hk) what is happening to the box in these two cases.
Asap
A horizontal force of 5.0 N pushes a 0.50-kg block against a vertical wall. The block is initially at rest. If µ. – 0.60 and 0.50, the acceleration of the block is: Ⓒ4.8 m/s² Ⓒ3.8 m/s² Ⓒ 9.8 m/s² 0.0 m/s² 08.0 m/s2