posted by amber .
A 10kg block is sliding at 10m/s along a frictionless track which suddenly curves straight up. how high will the block rise
The initial KE is 1/2 m v^2.
That energy goes into PE, mgh.
set mgh equal to 1/2 mv^2, solve h.
h= 1/2 v^2/g I think,check that.