- Calculation of kinetic and potential energies from a set of given data (Simple problems and assuming g=10 m/s2)
The potential energy of a body of mass 0.5 kg increases by 100 J when it is taken to the top of a tower from ground. If force of gravity on 1 kg is 10 N, what is the height of the tower ?
Give reasons for the following Hammer drives a nail into the wood only when it ¡s lifted up and then struck.
A truck of mass 1000 kg, increases its speed from 36 km h-1 to 72 km h-1. Find the increase is its kinetic energy.
Give one example of a body that has potential energy in each of the following due to its elongated stretched state.
Give one example of a body that has potential energy in each of the following due to its position at a height.