EBK PHYSICS
5th Edition
ISBN: 9780134051796
Author: Walker
Publisher: YUZU
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Textbook Question
Chapter 6.4, Problem 4EYU
Three boxes are connected by ropes and pulled across a smooth, horizontal surface with an acceleration a, as shown in Figure 6-21. The force applied to the first box on the right is F, the tension in the rope connecting the first
Figure 6-21 Enhance Your Understanding 4
and second boxes is T1, and the tension in the rope connecting the second and third boxes is T2.Rank the three forces (F, T1, T2) in order of increasing magnitude. Indicate ties where appropriate.
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Problem 1 Hi Friction
A box of mass m is on
an incline with 0 =
30°. It
There is
is connected to a massless rope and frictionless pulley where
another box of mass M is suspended as shown.
friction between the incline and mass m: the co-efficient of
static friction is
and the co-efficient of kinetic friction is
√3
3√3*
m
M
Draw a free-body diagram for each box.
(b) Suppose the box on the incline is not moving, what is the maximum mass the hanging box M could
be? What would this be in the case of no friction?
Problem
Two block system is given below. The mass of block one is m, 4 kg and the mass of block two is m, s kg. A force is
applied on ma to start the motion of block two knowing that block 1 doesn't move The coefficient of static friction for all surfaces is given as
04 (Take g-9.8 m/s).
Tension force
m
Fapplied
) Calculate the magnitude of the maximum static friction force |Fal created between block I and block 2.
d) (
Calculate the magnitude of the tension force |Fr| exerted by string attached to block 1
IFrl
e)
Calculate the magnitude of normal force |FN2l applied on the block 2 by the ground surface.
)Calculate the magnitude of the maximum static friction force |Fel exerted by the ground surface on block 2
Colculate the magnitude of the applied force IFaroliea that is needed just to start the motion of the block 2.
IF e
Chapter 6 Solutions
EBK PHYSICS
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