Question

A ball is gently dropped from a height of 2metre if its velocity increases uniformly at the rate of 10 metre per second. After what time will it strike the ground?

Answer 1

Answer:

10+2=12 is correct answer

Answer 2

Answer:

here,

h=2m

u=10 ms-1

g=10 ms-2

using s=ut+1/2*at2

10*t+1/2*9.8* t2

10t+4.9t2

t2=14.9

t=√14.9

t=3.86

ans

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