NUSAIBA ALIM
May 17, 2014, 07:35 AM
A lorry of mass 10000 kg takes 5000 kg of sand to the top of a hill 50 m high,unloads the sand and then returns to the bottom of the hill.
The gravitational field strength is 10 N / kg. What is the overall gain in potential energy?
The gravitational field strength is 10 N / kg. What is the overall gain in potential energy?