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Physics, 30.05.2021 16:20 nourmaali

A 20 kg block is released from rest from the top of a ramp at point A at a construction site as shown in the diagram. The ramp is inclined at an
angle of 30° to the horizontal and its top is at a height of 5 mabove the ground.

6.2 the kinetic frictional force between the 20kg block and the surface of the ramp is 30N. use energy principles to calculate the:

a. work done by the kinetic frictional force.
b. speed of the block at the point B at the bottom of the ramp​

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