A block starts at rest and slides down a frictionless track. The acceleration of gravity is 9.81 m/s^2. It leaves the track horizontally, striking the ground 4.9 m from the end of the track. (the track's horizontal bend is 2.4 m high off the ground) the block weighs 503 g
At what height off the ground is the block released?
What is the speed of the block when it leaves the track?
What is the speed of the block when it hits the ground?