Question

A photographer arranges to expose photographs

of a ball describing motion under free fall

such that it is photographed on a vertical scale

starting from zero. He photogaphed it when

the ball was at 76.05 m and the next exposure

was when the ball was at 80 m. The time of

exposure is (g = 10 m/s–2)

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Answer 1

Explanation:

A photographer arranges to expose photographs

of a ball describing motion under free fall

such that it is photographed on a vertical scale

starting from zero. He photogaphed it when

the ball was at 76.05 m and the next exposure

was when the ball was at 80 m. The time of

exposure is (g = 10 m/s–2)