Question

An object takes 5 s to reach the ground
from a height of 5 m on a planet. What is the
value of g on the planet?
A)4 m/s2
B)0.4m/s2
C)7 m/s2
D)0.7m/s2​

Answer 1

Answer:

s = ut + 1/2 g . t^2

5 = g x25/2

g = 10/25 = 2/5

g= 0.4 m sec^-2