Two balls are dropped to the ground from different heights. One ball is dropped 2 sec after the other but they both strike the ground at the same time. If the first ball takes 5 sec to reach the ground then the diffeence in initial heights is:

Two balls are dropped to the ground from different heights. One ball i

1.	Two balls are dropped to the ground from different heights. One ball is dropped 2 sec after the other but they both strike the ground at the same time. If the first ball takes 5 sec to reach the ground then the diffeence in initial heights is:
Answer» 20M 80m 170m 40m Solution :`H_(1)=(1)/(2)xxgxx(5)^(2)` `H_(2)=(1)/(2)xxg(3)^(2)`