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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 June 2014, 1:23 PM
Answered by Expert

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 Expert 4th June 2014, 3:23 PM
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