Question

Two cars A and B are travelling on a straight path with

certain velocities. Same retarding force is applied on both

the cars and both come to a halt after covering equal
distances. Which car does more work and why?​

Answer 1

Answer:

$work = f \times d$

Since the retarding force is the same and displacement before stopping is same,

Hence , both cars do equal work.

Answer 2

Work = force * displacement
Retarding force of car A = retarding force of car B
Displacement of car A= displacement of car B
Hence work done by both the cars are equal