A boy standing on a stationary lift ( open from above ) throws a ball upwards with the maximum initial speed he can, equal to ` 49 ms^(-1)`. How much time does the ball take to return to his hands ? If the lift starts moving up with a uniform speed of ` 5 ms^(-1)` and the boy again throws the ball up with the maximum speed he can , how hoes the ball take to return to his hands ?

A boy standing on a stationary lift (open from above) throws a ball upwards with the maximum initial speed he can , equal to 49" ms"^(–1) , how long does the ball take to return to his hands.?

A girl standing on a stationary lift (open from above) throws a ball upwards with initial speed 50 m s^(-1) . The time taken by the ball to return to her hands is (Take g = 10 m s^(-2) )

A player throws a ball upwards with an initial speed of 30 m s^(-1) . How long does the ball take to return to the player's hands? ( Take g = 10 m s^(-2) )

A player throws a ball upwards with an initial speed of 29.4 ms^(-1). What are the velcity and acceleration of the hall at the highest point os its motion ?

A boy of mass 50kg is standing on a weihing machine placed on the floor of a lift. The machine reads his weight in newtons. The reading of the machine if the lift is moving upwards with uniform speed of 10ms^(-1) .

A platform is moving upwards with a constant acceleration of 2 m s^-2 . At time t = 0 , a boy standing on the platform throws a ball upwards with a relative speed of 8 m s^-1 . At this instant, platform was at the height of 4 m from the ground and was moving with a speed of 2 m s^-1 . Take g = 0 m s^-2 . Find (a) when and where the ball strikes the platform. (b) the maximum height attained by the ball from the ground. ( c) the maximum distance of the ball from the platform.

A cricketer can throw a ball to a maximum horizontal distance of 100 m. How high above the ground can the cricketer throw the same ball ?

A person sitting in the compartment of a tarin moving with unifrom speed throws a ball in the upward direction . What path of the ball will appear to him ? What to a person standing outside ?