Question

(iv) 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?
​

Answer 1

Δ=μt+

2

1

gt

2

; μ=0

t

2

2Δ

=g

⇒g=

5×5

2×5

=0.4m/sec

2

Answer 2

Answer

Δ=μt+

2

1

gt

2

; μ=0

t

2

2Δ

=g

⇒g=

5×5

2×5

=0.4m/sec

2