Question

A car and truck have kinetic energies of 8×10 power 5 and 9×10 power

5 respectively. if they are brought to halt at the same distance. find the

ratio of forces applied to both the vehicles? ​

Answer 1

Answer:

Explanation:

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

Hey ΔE = W 8 x 10⁵ = F1 x d 9 x 10⁵ = F2 x d F1 : F2 = 8 x 10⁵ : 9 x 10⁵ = 8 : 9 = 8/9