Question

A ball is gently dropped from a height of 20 metre if its velocity increases a uniformly at the rate of 10 metre per second square with what velocity will it strike the ground after what time will it strike the ground​

Answer 1

Answer:

Explanation:

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Answer 2

Answer:

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t = 2 seconds

v = 20 m/s

Explanation:

s = 20m

u = 0 m/s

a = 10 m/s^2

s = u*t + 1/2 * a*t ^2

20 = 1/2 * 10 * t ^2

2 seconds = t

v = u + a*t

v = 10 * 2

= 20 m /s