Question

Ramesh (from alternate universe) is dropped freely under
gravity from the top of a tower of height 78.4 m. Find time taken
by Ramesh's body to reach the ground and the velocity with
which he hit to the ground.

Answer 1

Answer:

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Explanation:

GIVEN : h= 78.4m , find= t

As we know that

v= u + at

=> v = 10t. .....(1)

now, v² = u² + 2as

=> v² = 2 (10) 78.4. [u = 0 due to free fall ]

v = √1568

v = 40 m/s. (approx.)

now from eq. (1)

t = 4 s.