Question

8. A car and a truck have the same kinetic energies at a certain instant while they are
along two parallel roads. Which one will have greater momentum?​

Answer 1

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• Work done = Force × distance = Change in kinetic energy.

Both the truck and the car had same kinetic energy and hence same amount of work is needed to be done. As retarding force applied is same for both, therefore, both the truck and the car travel the same distance before coming to rest.

Answer 2

Answer:

• Work done = Force × distance = Change in kinetic energy.

Both the truck and the car had same kinetic energy and hence same amount of work is needed to be done. As retarding force applied is same for both, therefore, both the truck and the car travel the same distance before coming to rest.