Question

A ball is thrown vertically upwards from the ground with a velocity of 39.2 meter per second . Calculate - ( a) The maximum height to which the ball rises.( b ) The time taken by the ball to reach the highest point.

Answer 1

a). v²-u²=2gs
0²-(39.2)²=2 x 9.8 x S
-(39.2)²=19.6 x S
1536.64=19.6 x S
1536.64/19.6=S
S= 78.4

b). v = u+gt
= 39.2+(9.8) x t
t=49



Hope it helps you...

Answer 2

Answer:

bro your b part is wrong

in this book answer is 4a