Adiver springs upward with an initial speed of 1.75 m/s from a 3.0-m board. (a) find the velocity with which he strikes the water. [hint: when the diver reaches the water, his displacement is y = -3.0 m (measured from the board), assuming that the downward direction is chosen as the negative direction.] (b) what is the highest point he reaches above the water?

a) 7.848 m/s

b) 3.156 m

Explanation:

t = Time taken

u = Initial velocity = 1.75 m/s

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 9.81 m/s²

His highest height above the board is 0.156 m

b) Total height he would fall is 3+0.156 = 3.156 m

He is in the air for 0.8+0.18 = 0.98 seconds

a) His velocity when he hits the water is 7.848 m/s

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