IIT JEE Problem:A stone is projected from the point of the ground in such a direction so as to hit a bird on top of a telegraph post of height h and then attain a maximum height 2h.

A stone is projected from the ground in such a direction so as to hit a bird on the top of a telegraph post of height h and attains the maximum height of 2h above the ground. If at the insatant of projection, the bird were to fly away horizontally with a uniform speed, find the ratio between the horizontal velocity of bird and the horizontal component of velocity of stone, if the stone hits the bird while descending.

A stone dropped from a cliff hits the ground in 4 sec. Height of the cliff is

A stone dropped from the top of a tower reaches the ground in 3 s. The height of the tower is

Maximum height attained from the point of projection is:

A stone is dropped from the top of a tower. If it hits the ground after 10 seconds, what is the height of the tower?

A heavy stone is thrown from a cliff of height h in a given direction. The speed with which it hits the ground

Two particles projected form the same point with same speed u at angles of projection alpha and beta strike the horizontal ground at the same point. If h_1 and h_2 are the maximum heights attained by the projectile, R is the range for both and t_1 and t_2 are their times of flights, respectively, then

Two particles projected form the same point with same speed u at angles of projection alpha and beta strike the horizontal ground at the same point. If h_1 and h_2 are the maximum heights attained by the projectile, R is the range for both and t_1 and t_2 are their times of flights, respectively, then incorrect option is :

A ball is projected to attain the maximum range. If the height attained is H, the range is

A stone projected at an angle of 60^@ from the ground level strikes at an angle of 30^@ on the roof of a building of height h . Then the speed of projection of the stone is: