Two Blocks on Ice Two stacked boxes are sliding along an ice rink with an initial velocity vo to the right. You are trying to stop the boxes so you exert a force on the top box as indicated in the figure Y1 1 2 The magnitude of the force that you exert is variable, and follows the equation: FY1 with Fo and b constants, and t the time since you began exerting the force. Because the boxes are sliding on ice, the friction between box 2 and the ground is negligible. There is friction between the two boxes, and they are observed to accelerate together as you exert the force to slow them down. Note: This problem will be much easier if you solve everything symbolically before you substitute in the values for the parameters. Use the following values for the parameters: 8.8 kg m2 = 4.4 kg = 24.6° Fo = 121 N b = 0.10 s-1 ti = 3.162 s 11.0 m/s тi 3

Two Blocks on Ice Two stacked boxes are sliding along an ice rink with an initial velocity vo to the right. You are trying to stop the boxes so you exert a force on the top box as indicated in the figure Y1 1 2 The magnitude of the force that you exert is variable, and follows the equation: FY1 with Fo and b constants, and t the time since you began exerting the force. Because the boxes are sliding on ice, the friction between box 2 and the ground is negligible. There is friction between the two boxes, and they are observed to accelerate together as you exert the force to slow them down. Note: This problem will be much easier if you solve everything symbolically before you substitute in the values for the parameters. Use the following values for the parameters: 8.8 kg m2 = 4.4 kg = 24.6° Fo = 121 N b = 0.10 s-1 ti = 3.162 s 11.0 m/s тi 3

Name: Find the magnitude of the friction force from 1 on 2 att1. You may use
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Description: Find the magnitude of the friction force from 1 on 2 att1. You may use μs=0.17, μk=0.14 Determine the total time, tf, that it takes you to stop the blocks. Two Blocks on IceTwo stacked boxes are sliding along an ice rink with an initial velocity voto

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 23P: While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch....

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Concept explainers

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows:

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Question

Find the magnitude of the friction force from 1 on 2 at

t1. You may use μs=0.17, μk=0.14

Determine the total time, tf, that it takes you to stop the blocks.

Two Blocks on Ice
Two stacked boxes are sliding along an ice rink with an initial velocity vo
to the right. You are trying to stop the boxes so you exert a force
on the top box as indicated in the figure
Y1
1
2
The magnitude of the force that you exert is variable, and follows the equation:
FY1
with Fo and b constants, and t the time since you began exerting the force.
Because the boxes are sliding on ice, the friction between box 2 and the ground is negligible. There is friction between the two boxes, and they are observed to accelerate together as
you exert the force to slow them down.
Note: This problem will be much easier if you solve everything symbolically before you substitute in the values for the parameters.
Use the following values for the parameters:
8.8 kg
m2 = 4.4 kg
= 24.6°
Fo = 121 N
b = 0.10 s-1
ti = 3.162 s
11.0 m/s
тi 3

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