Question

A ball is thrown 125 m upwards and then falls back to earth.
Neglecting air resistance, how long will it be in the air? The acceleration of gravity is 9.8m/s^2

Answer 1

do you know your kinematic equations?

Answer 2

S=125
u=0
g=9.8m/s^2


S=ut+(1/2)at^2
125=0+(1/2)(9.8)t^2
t=5.05second

Answer 3

I thought it was around 5 seconds but it was incorrect. And I do not know the equation

Answer 4

t=5.05second is time for object fall downward, for total time in air = 5.05x2 = 10.1second

Answer 5

Thank you :)