Question

Answer the following questions (any three): [6]

i. An object takes 5 seconds to reach the ground from a height of 5 m on a planet. What is the

value of ‘g’ on that planet?​

Answer 1

Answer:

Explanation:

Given : Displacement ( s) = 5m

            Time ( t) = 5s

            Initial velocity ( u ) = 0m/s

To Find : Gravitational acceleration ( g) = ?

Formula: S = u t + 1/2 g t²

SOLUTION :

S= u t +1/2 + g t²

5=0x 5 + 1/2 +g x 5²

5= 0 + 1/2 + 25g

5 x 2 = 25g

10 = 25g

10/25= g

0.4 =g

∴ Value of g is 0.4 m/s²