Question

Speeds of two identical cars are u and 4u at a specific instant. If the same deceleration is applied on both the cars, the ratio of the respective distances in which the two cars are stopped from that instant is

(a) 1 : 1 

(b) 1 : 4

(c) 1 : 8 

(d) 1 : 16.

Answer 1

(d) : Both are given the same deceleration simultaneously and both finally stop.

Formula relevant to motion : u ² = 2 as