Recent content by lakefall

I'm not sure if I am doing it right, but I used KE = 1/2mv^2 and KE(final) - KE(initial), I think KE(initial) is 0 because you said it is at rest so 0 m/s = V so its 0. But for the KE(final) i got 168750 which is way off haha. I think I'm doing it wrong. T.T Hi thanks ^_^ okay ill remember...

A car of mass 1500 kg goes down a hill with a height of 50m. when the car reaches the bottom of the hill the speed is 15 m/s. how much energy was lost due to friction and air resistance? hey, I am having trouble with my home work T.T I have no clue how to do it if someone can help, much would...