Jestoni pulls Junry whose mass is 55 kg and who is sitting on a swing with rope of length 4 m, backward until the rope make an angle of 35° with respect to the vertical. He then releases Junry from rest. Determine the speed of Junry at the bottom of the swinging motion? a. 3.67 m/s c. 3.87 m/s b. 3.77 m/s d. 3.57 m/s

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.