Question

A ball is projected upwards with velocity
of 100 m/s. Find the speed of the ball at half the
maximum height. Take g = 10 m/s.
a) 1050 m/s
c) 5V50 m/s
b) 20v50 m/s
d) 15v50 m/s​

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: