A ball is dropped from a bridge at a height of 176.4 m over a river. After 2s a second ball is thrown straight downwards. What should be the initial velocity of the second ball so that both hit the water simultaneously ?

A ball is dropped from a bridge at a height of 176.4 m over a river. A

1.	A ball is dropped from a bridge at a height of 176.4 m over a river. After 2s a second ball is thrown straight downwards. What should be the initial velocity of the second ball so that both hit the water simultaneously ?
Answer» 2.45 m/s 49 m/s 14.5 m/s 24.5 m/s Solution :`F = v_("REL") ((DM)/(DT))`