Question

a body is projected vertically up from the top of a tower with 19.6 per second takes 5 sec ​

Answer 1

Answer:

As given the body is projected upward from tower and finally it comes down on ground

So,displacement of body is equal to height of tower =H

u = 19.6m/s ,g = -10m/s

Here u and g are in opposite direction , so i have taken opposite signs

S=ut+1/2 gt^2

H=19.6×5+1/2 ×-10 ×5×5

H= -27 m

Here '-' indicate that displacement is in the downward direction

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