Question

What is the work to be done to increase the velocity of VAN from 10m/sec to 20m/sec.If the mass of the object is 2000kg.

Answer 1

Explanation:

Hey Mate it seems pretty simple to solve

As we know that workdone is equal to change in kinetic energy

Initial velocity of car=10m/s

final velocity of car=20m/s

Hence change in kinetic energy=1/2×2000×{20^2-10^2}

=300kj

Hope it helps you