Question

a body is thrown upward with an initial velocity of 100 metre per second after 10 second what is the velocity of the body?

Answer 1

Answer:

Ball thrown vertically will suffer retardation of 'g'.

time taken by gravity to reduce balls speed to zero.

0=100+(−10)t

t=10sec.

Ball will be at its peak at t=10sec..It will take same amount of time to comeback to ground total time T=20sec.

Explanation:

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Answer 2

Answer:

0 m/s

Explanation:

use formula v = u + at

for freely falling bodies, it becomes v = u - gt

g = 10 m/s^2

v = 100 - 10 (10)

  = 100 - 100

  = 0