Two particles of same mass are project simultaneously with same speed `20ms^(-1)` from the top of a tower of height 30m. One is projected vertically upwards and other projected horizontally.The maximum height attained by centre of mass from the ground will be `(g=10ms^(-2))`

Two bodies are projected simultaneously with the same velocity of 19.6 m//s from the top of a tower one vertically upwards and the other vertically downwards. As they reach the ground, the time gap is

A stone is projected vertically upwards.When it reaches half the maximum height,its velocity is 20m/s.What is the maximum height attained by the stone? (g=10m/s^(2)

Two balls are projected simultaneously with the same speed from the top of a tower, one vertically upwards and the other vertically downwards. They reach the ground in 9 s and 4 s, respectively. The height of the tower is (g=10 m//s^(2))

A body of mass m is dropped and another body of mass M is projected vertically up with speed u simultaneously from the top of a tower of height H . If the body reaches the highest piont before the dropped body reaches the ground, then maximum height raised by the centre of mass of the system from ground is

A ball of mass 1 kg is projected with 10ms^(-1) froom the top of a toer of height 20 m. What is its speed when it is at vertical distance of 10 m below point of projection? (g=10ms^(-2))

A particle is projected horizontally will speed 20 ms^(-1) from the top of a tower. After what time velocity of particle will be at 45^(@) angle from initial direction of projection.

Two balls of equal mass are projected upwards simultaneously, one from the ground with initial velocity 50ms^-1 and the other from a 40m tower with initial velocity of 30ms^-1 . The maximum height attained by their COM will be

A stone is projected at 30^(@) above to the horizontal with a speed 20m s^(-1) from the top of a tower of height 120m .The time after which it reaches the ground is (g=10m s^(-2) )

Two stones of masses m and 2 m are projected vertically upwards so as to reach the same height. The ratio of the kinetic energies of their projection is