a particle is projected from tower with the height of 25m with velocity 20(root2) at an angle 45. Find the time when particle strikes the ground and horizontal distance from foot of toe=wer where it strikes and also find the velocity of collsion
a balloon is moving up with an acceleration a=4 m/sec2. a coin is dropped from the balloon 5 sec after the start balloon.find
1) the initial velocity of the dropped coin
2)the height attained by the lift till time of drop
3)the time after the drop when the coin reaches the ground.