How does the velocity of a ball thrown upwards change on its way?

If a ball is thrown upwards from the surface of earth :

A truck is moving horizontally with velocity v. A ball thrown vertically upward with a velocity u at angle theta to the horizontal from the truck relative to it. The horizontal range of the ball relative to the ground is

Two balls A and B of same masses are thrown from the top of the building A . Thrown upward with velocity V and B , thrown downward with velocity V , then

An elevator car (lift) is moving upward with uniform acceleration of 2 m//s^(2) . At the instant, when its velocity is 2 m/s upwards a ball thrown upward from its floor. The ball strikes back the floor 2s after its projection. Find the velocity of projection of the ball relative to the lift.

A stone is thrown vertically upwards from the velcity and accleration of the stone (a) on its way (b) on its way down.

Which of the following graphs show the v - t graph of a ball thrown upwards ?

A ball is dropped from the top of a building 100 m high. At the same instant another ball is thrown upwards with a velocity of 40ms^(-1) form the bottom of the building. The two balls will meet after.