(Figure 1) shows the free-body diagrams of two interacting bodies. A 3.0 kg wood
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Question
(Figure 1) shows the free-body diagrams of two interacting bodies. A 3.0 kg wood block is placed behind a 2.0 kg wood block on a horizontal table. The coefficients of kinetic friction with the table are 0.30 for the 1.0 kg block and 0.50 for the 2.0 kg block. The 3.0 kg block is pushed forward, against the 2.0 kg block, and released when the speed of the blocks sliding together is 2.0 m/s. How far do the blocks travel before stopping? A 3.0 kg wood block is placed behind a 20 kg wood block on a horizontal table. The coefficients of kinetic friction with the table are 0.30 for the 3.0 kg block and 0.50 for the 20 kg block. The 3.0 kg block is pushed forward, against the 20 kg block, and released when the speed of the blocks sliding together is 2.0 m/s. How far do the blocks travel before stopping? A 1.0 kg wood block is placed behind a 2.0 kg wood block on a horizontal table. The coefficients of kinetic friction with the table are 0.30 for the 1.0 kg block and 0.50 for the 2.0 kg block. The 1.0 kg block is pushed forward, against the 2.0 kg block, and released when the speed of the blocks sliding together is 2.0 m/s. How far do the blocks travel before stopping? Finish the solution of the problem. How far do the blocks travel before stopping? Express your answer with the appropriate units. d =Explanation / Answer
both blocks move with same initial velocity=Vi=2 m/s
final velocity=0
using work energy theorem
work done= change in KE
-9.8d+ (-2.94d)= 0-1/2 (2+1)(2)2 .
-12.74d=- 6
d=0.471 m
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