A boy standing in a trolley car projects a stone perpendicular to the trolley car with a speed v. If the trolley car moves with a constant velocity u, the time of flight of the stone is

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Q. A shell is projected. from a gun with a muzzle velocity,

u

. The gun is fitted with a trolley car at an angle

θ

as shown in Figure. If the trolley car is made to move with constant velocity

v

towards right. find the
a. horizontal range of the shell relative to ground.
b. horizontal range of the shell relative to a person travelling with trolley.

A shell is projected from a gun with muzzle velocity $u$ . The gun is fitted with a trolley car at an angle $θ$ as shown in the fig. If the trolley car is made to move with constant velocity $v$ towards right, find the

(i) horizontal range of the shell relative to ground.

(ii) horizontal range of the shell relative to a person travelling with trolley.

(i) horizontal range of the shell relative to ground.

(ii) horizontal range of the shell relative to a person travelling with trolley.

A child is standing at one end of a long trolley moving with a speed v on a smooth horizontal track. If the child starts running towards the other end of the trolley with a speed u, the centre of mass of the system (trolley $+$ child) will move with a speed.

Q. A child is standing at one end of a long trolley moving with a speed 'v' on a smooth horizontal track. If the child starts running towards the other end of the trolley with a speed 'u', the centre of mass of the system (trolley + child) will move with a speed

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