A ball rolls along the top of a 2.8 m high table with a constant velocity. It reaches the edge of the desk and hits the ground 0.35 m from the dusk. What was the initial velocity of the ball as it rolled across the table? Please help asap!

12000j is work done

correct it is c.) b b

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.