1) The 20 lb block is moving to the right with a speed of 2 ft/sec on a flat surface, when force P is applied 16 at 1 = 0. The kinetic coefficient of friction is 0.5. P, Ib Vo - 2 ft/sec a. What is the velocity of the block when 1 = 20 lb 0.2 sec. b. If P continues to be 8 lb for 1> 0.4 s, when 0.5 will the block come to a stop? 0.2 0.4 sec
1) The 20 lb block is moving to the right with a speed of 2 ft/sec on a flat surface, when force P is applied 16 at 1 = 0. The kinetic coefficient of friction is 0.5. P, Ib Vo - 2 ft/sec a. What is the velocity of the block when 1 = 20 lb 0.2 sec. b. If P continues to be 8 lb for 1> 0.4 s, when 0.5 will the block come to a stop? 0.2 0.4 sec
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Transcribed Image Text:1) The 20 lb block is moving to the right with a speed
P, lb
vo = 2 ft/sec
of 2 ft/sec on a flat surface, when force P is applied
16
at t = 0. The kinetic coefficient of friction is 0.5.
a. What is the velocity of the block when t=
20 lb
0.2 sec.
b. If P continues to be 8 lb for t> 0.4 s, when
will the block come to a stop?
0.5
0.2
0.4
t, sec
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