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A ball moves on a frictionless inclined ...

A ball moves on a frictionless inclined table without slipping. The work done by the surface on the ball is :

A

positive

B

negative

C

zero

D

none of these

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SL ARORA-Work, Energy and power-EXERCISE
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  2. When a body moves with a constant speed along a circle

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  3. A ball moves on a frictionless inclined table without slipping. The wo...

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  4. A body of mass 2 kg is placed on rough horizontal plane. The coefficie...

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  5. oversetrightarrowF.oversetrightarrowds?

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  6. A particale moves under the effect of a force F = Cs from x = 0 to x =...

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  7. A force F=(10+0.5 x) acts on a particle in the x-direction. What would...

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  8. The work done by an applied variable force F=x+x^(3) from x = 0 m to x...

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  9. The relationship between the force F and position x of body is as show...

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  10. The kinetic energy of a body of mass 2 kg and momentum of 2 Ns is

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  11. Two bodies of masses m and 4 m are moving with equal K.E. The ratio of...

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  12. Two bodies A and B having mass m and M respectively ppossess same kine...

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  13. If momentum is increased by 20% then K.E. increases by

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  14. If momentum is increased by 20% , then K.E. increase by

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  15. A body of mass 10 kg initially at rest acquires velocity 10 ms^(-1). W...

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  16. How much work must work be done by a force on 50 kg body in order to a...

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  17. A taxi without any passengers, moving on a frictionless horizontal roa...

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  18. If the potential energy between two molecules is given by U= -(A)/(r^6...

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  19. The potential energy of a particle of mass 5 kg moving in the x-y plan...

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  20. A simple pendulum hanging freely and at rest is vertical because in th...

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