question_answer

A car and a truck are moving with same momentum. If they are stopped by same retarding force, then (i) Which one will travel greater distance before coming to rest? (ii) Which one will take greater time to come to rest?

Answer:

(i) Lighter body travels greater distance before coming to rest. (ii) The time taken to come to rest\[t=\frac{Momentum}{Force}=\frac{P}{F}.\]Therefore, both car and truck come to rest in same time.