`O^(++), C^(+), He^(++)` and `H^(+)` inos are projected on the photographic plate with same velocity in a sepctrograph. Which one will strike farthest ?

A ball is projected upwards from a height h above the surface of the earth with velocity v. The time at which the ball strikes the ground is

A ball is projected upwards from a height h above the surface of the earth with velocity v. The time at which the ball strikes the ground is

A ball is projected upwards from a height h above the surface of the earth with velocity v. The time at which the ball strikes the ground is

.A ball is projected upwards from a height h above the surface of the earth with velocity v .The time at which the ball strikes the ground is

Two particles A and B are projected from the same point with the same velocity of projection but at different angles alpha and beta of projection, such that the maximum height of A is two-third of the horizontal range of B. then which of the following relations are true?

A body is projected horizontally from the top of a tower of height 4.9m with a velocity of 9.8m/s. The velocity with which the body strikes the ground is?

A body projected upward reaches a maximum height h, the velocity with which it was projected is:_________.