K.C.S.E Physics Q & A - MODEL 1999PP2QN03

K.C.S.E Physics Q & A - MODEL 1999PP2QN03

A tape attached to a moving trolley is run through a ticker timer. Figure 3 shows a section of the tape after running.

​If the frequency of the ticker – timer is 50Hz, determine the:
i) Average velocity at intervals AB and CD.
ii) A average acceleration of the trolley.
b) A stone is released from a height, h. if the acceleration due to gravity is g, derive an expression of the velocity of the stone just before hitting the ground.
c) Figure 4 (a) shows a velocity – time graph of an object in motion.

Sketch on the axes provided in figure b4 (b0, the displacement – time graph of the Motion
(Motion upwards is taken as positive.

answers