Question

A ball is thrown vertically upward with a velocity of 98 metre per second with what speed does the ball return to the ground​

Answer 1

Answer:

0.02

Explanation:

v=98 m

T=1sec

s=?

we know,

v=u+at

for upward:

98=0+(-g)×1

98=(-g)×1

g=1÷98

g=0.010

for downward

similarly,

98=0+g×1

g=1÷98

g=9.010

Total speed=0.010+0.010

=0.02