Water drops are falling in regular intervals of time from top of a tower to height 9 m. If `4^(th)` drop begins to fall when `1^(st)` drop reaches the ground, find the positions of `2^(nd) & 3^(rd)` drops from the top of the tower.

Drops of water trickles down from the ceiling at regular intervals of time such that the fourth drop will just drop freely after the first drop reaches the floor. Find the position of 2nd and 3rd drop from the floor. Assume that the ceiling is 8 m from the floor.

Write the locus of a stone dropped from the top of a tower.

Water drops are falling at regular intervals from roof of building of height "16m" .At the instant first drop touches the ground "5^(" th ")" drop is leaving the roof.Distance between "2^(" nd ")" and "3^(" rd ")" drops at that instant is

Water drops fall from the roof a building 20 m high at regular time intervals. If the first drop strikes the floor when the sixth drop begins to fall, the heights of the second and fourth drops from the ground at that instant are (g = 10 ms^(-2))

A ball is dropped from the top of a tower.prove that,the height of the tower is 20m if the ball reaches the ground with a velocity 20 m//s .