2. A boy exerts 50.0 N to push an object across a horizontal surface at constant velocity. If the object has a mass of 10.0 kg, what is the coefficient of kinetic friction between the object and the surface?

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)...
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n = mg = 35 kg x 9.8 m/s²
= 343 N
Hs n = 0.50 x 343 N
fs =
= 171.5 N
Fp = fs = 171.5 N
2. A boy exerts 50.0 N to push an object across a horizontal surface at constant
velocity. If the object has a mass of 10.0 kg, what is the coefficient of kinetic friction
between the object and the surface?
3. How much force is needed in Problem 2 if the boy exerts the force at an angle of
30.0° above the horizontal.
The coefficient of sliding friction between a 50.0 kg ice and the pavement is
0.06. What force is needed to move the ice at constant speed across the pavement?
4.
Transcribed Image Text:n = mg = 35 kg x 9.8 m/s² = 343 N Hs n = 0.50 x 343 N fs = = 171.5 N Fp = fs = 171.5 N 2. A boy exerts 50.0 N to push an object across a horizontal surface at constant velocity. If the object has a mass of 10.0 kg, what is the coefficient of kinetic friction between the object and the surface? 3. How much force is needed in Problem 2 if the boy exerts the force at an angle of 30.0° above the horizontal. The coefficient of sliding friction between a 50.0 kg ice and the pavement is 0.06. What force is needed to move the ice at constant speed across the pavement? 4.
ACTIVITY 2: SOLVE THESE PROBLEMS FOR ME
Direction: Answer the following problems. Write the given, what is required, sketch of the
given, free-body diagram and the solution.
1. Art pushes a 35 kg box across a wooden surface whose coefficient of static friction
force is 0.50. How much force is needed to start the motion?
Given:
Required:
m = 35 kg.
FP
v = 0.00 m/s Hs
= 0.50
shutterstock.c om 3 98746132
FP = fs.
FW = n
Transcribed Image Text:ACTIVITY 2: SOLVE THESE PROBLEMS FOR ME Direction: Answer the following problems. Write the given, what is required, sketch of the given, free-body diagram and the solution. 1. Art pushes a 35 kg box across a wooden surface whose coefficient of static friction force is 0.50. How much force is needed to start the motion? Given: Required: m = 35 kg. FP v = 0.00 m/s Hs = 0.50 shutterstock.c om 3 98746132 FP = fs. FW = n
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