Question

A large sled is located with rocks and sits at the top of a snowy slope as shown in the diagram below

the sled and Rock weigh a total of 1250kg the top of the slope is 100m away from the bottom and 12.0 m vertically higher than it

the sled is initially stationary and then begins to slide without friction down the incline at what speed will the sled be travelling when it reaches the bottom of the slope in ms-1

Answer 1

$a=g\sin\alpha=g\frac{m}{\sqrt{m^2+n^2}},$

$v=\sqrt{2as}=\sqrt{2gm}=15.3~\frac ms.$