Awrecking ball is hanging at rest from a crane when suddenly the cable breaks. the time it takes for the ball to fall to the ground is 1.7 s. at what velocity did the ball hit the ground? at what height above the ground was the wrecking ball hanging?

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.