Physics
A car is moving with a speed of 15 km h-1 and another identical car is moving with a speed of 30 km h-1. Compare their kinetic energy.
Related Questions
A body of mass 60 kg is moving with a speed 50 m s-1. Find its kinetic energy.
A truck of mass 1000 kg increases its speed from 36 km h-1 to 72 km h-1. Find the increase in its kinetic energy.
A pump raises water by spending 4 x 105 J of energy in 10 s. Find the power of pump.
It takes 20 s for a girl A to climb up the stairs while girl B takes 15 s for the same job. Compare:
(a) The work done and
(b) The power spent by them.