A freely falling body covers 35 m during a certain one-second interval. Taking g = 10 m s⁻² and assuming it was released from rest, this is the:
Options

Question

A freely falling body covers 35 m during a certain one-second interval. Taking g = 10 m s⁻² and assuming it was released from rest, this is the:

G1 Physics · Accepted Answer

For a body released from rest, distance in nth second is sₙ = 5(2n − 1). Set 5(2n − 1) = 35 ⇒ 2n − 1 = 7 ⇒ n = 4.