A heavy vehicle moving with velocity $15 m s^{- 1}$ strikes an object of very small mass at rest head on elastically. Velocity of object after collision is

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Important Questions on Work, Energy and Power

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>EXERCISE>Q 19

Two balls of equal masses

m

each undergo oblique collision. If collision is perfectly elastic, then angle between their velocities after collision is

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>EXERCISE>Q 20

A block of $10 g$ slides on smooth horizontal surface with $20 m s^{- 1}$ towards a spring of spring constant $100 N m^{- 1}$ placed horizontally (as shown in figure). The maximum compression in spring is

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>EXERCISE>Q 21

Two steel balls

A

and

B

of mass

10 kg

and

10 g

rolls towards each other with

5 m s^{- 1}

and

1 m s^{- 1}

respectively on a smooth floor. After collision; with what speed

B

moves [perfectly elastic collision]?

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>EXERCISE>Q 22

Two ivory balls are placed together at rest. A third identical ball moving with velocity $u$ In line of first two balls; as shown in figure collide head on elastically then

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