In the circuit shown in the figure, reading of voltmeter is $V_{1}$ when only $S_{1}$ is closed, $V_{2}$ when only $S_{2}$ is closed and $V_{3}$ when both $S_{1}$ and $S_{2}$ are closed. Choose the correct relation between $V_{1}$ , $V_{2}$ and $V_{3}$ .

Q. A particle is travelling with uniform acceleration of magnitude a. During successive time intervals of

Δ t_{1}, Δ t_{2}

and

Δ t_{3}

, its average velocities are

v_{1}, v_{2}

and

v_{3}

respectively. Then,

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A ball is thrown vertically upward with speed v1, and it returns to ground with speed v2. If air resistance is not ignored, then, choose the correct alternative:

The correct option is A v1=v2As acceleration is g that is constant in both the cases,v1=v2When a body is thrown vertically upwards it reaches a height h At height h velocity =002−v21=2(−g)hv1=√2ghWhen it reaches the ground againv22−02=2ghv2=√2ghv1=v2

A ball is thrown vertically upward with speed $v_{1}$ , and it returns to ground with speed $v_{2}$ . If air resistance is not ignored, then, choose the correct alternative: