A driver of car takes `-20 s` (which is the reaction time of dricer ) to apply the brkes afte
Channel: Doubtnut
Date: 2020-07-26

A driver of car takes `-20 s` (which is the reaction time of dricer ) to apply the brkes after he sees an obstruction at a distance of `25 m` from him . If he is driving car at a speed of `54 km h^(-1)` and the brakes cause a deceleration of `6.0 km h^(-2), predict whether he will avert collistion or not.