# Using the equation for kinetic energy: #k=1/2mv^2# Find the instantaneous rate of change of the kinetic energy of a #1500 kg# car which has a velocity of #80 m/s# and an acceleration of #10m/s^2#?

##### 1 Answer

Kinetic energy

Instantaneous rate of change of KE is its differential with time

Where

Inserting given instantaneous values we get