Question

While driving on a level road at 72 kmph, Vinayak observes the traffic signal turning red, the (white) stopping line being 52 m away from the front end of his car. Immediately he applies the brakes that decelerate his car at 4 m/s². How far from the stopping line will the front end of Vinayak's car be after 6 seconds?

(a) Zero 

(b) 2 m 

(c) 4 m 

(d) 6 m

Answer 1

Correct option: (c) 4 m

Explanation: 

∴ Distance from stopping line, x = 52 - 48 = 4 m