A 4kg block is lowered down a rough inclined plane a distance of 5m from A to B. of 37o with the horizontal as shown. At point A the speed of the block is vA = 2.2m/s.A horizontal force F-10N is applied on the block between A and B as in figure below. The kinetic energy of the block at B becomes 201. 1. Calculate the work of the weight during the motion of the block from A to B. 2. Determine the work done by friction on the block between A and B. 3. Deduce the value of the friction.
A 4kg block is lowered down a rough inclined plane a distance of 5m from A to B. of 37o with the horizontal as shown. At point A the speed of the block is vA = 2.2m/s.A horizontal force F-10N is applied on the block between A and B as in figure below. The kinetic energy of the block at B becomes 201. 1. Calculate the work of the weight during the motion of the block from A to B. 2. Determine the work done by friction on the block between A and B. 3. Deduce the value of the friction.
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Transcribed Image Text:A 4kg block is lowered down a rough inclined plane a distance of 5m from A to B. The plane makės an angle
of 37o with the horizontal as shown. At point A, the speed of the block is vA = 2.2m/s. A horizontal force
F-10N is applied on the block between A and B as in figure below.
The kinetic energy of the block at B becomes 20J.
1. Calculate the work of the weight during the motion of the
block from A to B.
2. Determine the work done by friction on the block between A
and B.
3. Deduce the value of the friction.
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