In the system shown in the figure (Figure 1) , block A has mass mA =...
In the system shown in the figure (Figure 1) , block A has mass
mA = 2.05 kg , block B has mass mb = 0.360 kg , and the rope
connecting them has a nonzero mass 0.205 kg . The rope has a total
length 1.06 m and the pulley has a very small radius. Let d be the
length of rope that hangs vertically between the pulley and block
B. If there is friction between block A and the table top,
with ?k = 0.203 and ?s = 0.255, find the minimum
value of the distance d such that the blocks will start to
move if they are initially at rest. Ignore any sag in the
horizontal part of the rope.
Homework Answers
As the blocks are about to move, we'll say static friction has
to act
so, 2.05*0.255*9.8 = 0.360*9.8 + d*0.205*9.8/1.06
d = 0.8415 m
Add Answer to:
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