Question

Heyy everyone..please solve this
A ball projected vertically upwards from a ground with an initial velocity u returns to ground after time t. the max h is H. the speed of projection of ball is increased by n time it's earlier value. the ratio of percentage change in H and T is?​

Answer 1

Answer:

Using the equation of motion

v^2 - u^2 = 2as

v = 0 at s = h and a = -g

h = u^2/ (2g)

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Answer 2

Answer:

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