A satellite gets unstable in its orbit and starts to fall towards a planet and heating up. If the satellite had a potential energy of 5000 joules initially and by the time it reaches the surface of the planet it attains a kinetic energy of 2500 joules the how much energy is converted to heat?
500J
Potential energy is converted to kinetic and heat.
so 5000 = 2500 + heat energy
heat energy = 2500 J