4. A 754g ball starts from rest and slides down a frictionless, elevated ramp. When it leaves the bottom of the ramp, it is moving perfectly horizontally, 1.83m above the ground, and hits the ground 0.92m away from the ramp. a. At what height above the ground did the ball start? b. How fast was the ball moving when it left the ramp? c. How fast was the ball moving when it hit the ground?

4. A 754g ball starts from rest and slides down a frictionless, elevated ramp. When it leaves the bottom of the ramp, it is moving perfectly horizontally, 1.83m above the ground, and hits the ground 0.92m away from the ramp. a. At what height above the ground did the ball start? b. How fast was the ball moving when it left the ramp? c. How fast was the ball moving when it hit the ground?