2)
=>W = Delta Energy
=>Delta Energy = kinetic friction * distance
=>Delta Energy = 0.23 * 320 * 9.8 * [500/300] * 500
=>Delta Energy = 601067 J
I reversed that and got this value. If it is not correct, then can you explain much clearer about the work energy theorem?
I did it this way.
1) PE = mgh = 320 x 9.8 x 300 = 940800 J
2) By work energy theorem:
=>W = Delta Energy
=>Delta Energy = kinetic friction * distance
=>Delta Energy = 0.23 * 320 * 9.8 * [300/500] * 500
=>Delta Energy = 216384 J
I did it this way, but for question 2, should the...
Homework Statement
A 320 kg car slides from rest down a hillside that is 500 m long and 300 m high. The coefficient of kinetic friction between the car and the hill surface is 0.23.
1) If the gravitational potential energy PE of the car-Earth system is set to zero at the bottom of the...