Question

an object takes 5 seconds to reach thr ground from a height 5m on a planet what its value of g on the planet?

Answer 1

s=ut+1/2at^2
5=25/2a
a=2/5=0.4m/s ^2

Answer 2

s= ut + 1 / 2at²
5 = 25/ 2a
a= 2/5 = 0.4m/s².