Two cars A and B are travelling in same direction with speed v1 and v2 respectively (v1 > v2 ). When car A is d distance behind the car B, the brakes on A are applied, causing retardation . Show that to prevent a collision between A and B it is necessary that

(v1 > v2 )2 < (2d)

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Here, in problem to prevent the collision of car A with B, the relative velocity of car A w.r.t. B should reduce to zero before car A undergoes the relative displacement of d w.r.t. car B.

Answered by  | 4th Jun, 2014, 03:23: PM