Question

A car weights 1200kg is uniformly accelerated from rest and covers a distance of 40m in 5s. Calculate the work done by engine of car during this time.What is the final kinetic energy of the car?

Answer 1

Mass = 1200 kg
Acceleration = 8 m/s^2

FORCE = Mass x acceleration
= 1200 x 8
= 9600 N

Work Done = Force x Displacement
= 9600 x 40
= 384000 Joule
Kinetic Energy = 1/2 x Mass x velocity ^2

Answer 2

Explanation:

the answer is 153600 Joule