Recent content by AlKaiser

1. The problem statement: A 98 kg man lying on a surface of negligible friction shoves a 86 g stone away from himself, giving it a speed of 4.5 m/s. What speed does the man acquire as a result? 2. Homework Equations : Pi = Pf M1V1 + M2V2 = M1V1 + M2V2 3. The Attempt at a...

Ok, so if it's not 53 metres, does that mean that the crate travels up before it travels down? Or is it -53m? I'm sorry, but I honestly am stumped on this one. I'm going to need a bigger hint because I really don't see how it isn't 53. (I'm not askin for the answer, just a bit more of a hint, as...

1. A hot-air balloon is ascending at the rate of 11 m/s and is 53 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground? 2. v = u + at s = ut + 1/2 a t^2 v^2 = u^2 + 2as 3. s...