College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Textbook Question
Chapter 4, Problem 11PE
The rocket sled shown in Figure 4.33 accelerates at a rate of 49.0 m/s2. Its passenger has a mass of 75.0 kg. (a) Calculate the horizontal component of the force the seat exerts against his body. Compare this with his weight by using a ratio. (b) Calculate the direction and magnitude of the total force the seat exerts against his body.
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A block of mass m =
6.0 kg is pulled up a 0 = 21° incline as in the figure below with a force of magnitude F = 38 N.
F
m
(a) Find the acceleration of the block if the incline is frictionless. (Give the magnitude of the acceleration.)
m/s?
(b) Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.11. (Give the magnitude of the acceleration.)
m/s²
A block of mass m = 5.7 kg is pulled up a θ = 22° incline as in the figure below with a force of magnitude F = 33 N.
Find the acceleration of the block if the incline is frictionless. (Give the magnitude of the acceleration.)
Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.12. (Give the magnitude of the acceleration.)
A block of mass M is suspended at rest by two strings attached to walls, as shown in the figure. The left string is horizontal with tension force T2 and and the right string with tension
force T1 makes an angle 0 with the horizontal. I1 is measured to be 63 N, and e = 41.0°. What is the mass of the block, in kg? Use g = 10 m/s2.
Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it
is already given in the question statement.
M
Chapter 4 Solutions
College Physics
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