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A particle of mass M is moving in a hor...

A particle of mass M is moving in a horizontal circle of radius R with uniform speed V. When it moves from one point to a diametrically opposite point, its

A

kinetic energy changes by `Mv^2 / 4`

B

momentum does not change

C

momentum changes by 2 Mv

D

kinetic energy changes by `Mv^2`

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SL ARORA-Work, Energy and power-EXERCISE
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  10. Two springs A and B (k(A)=2k(B)) are stretched by applying forces of e...

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  11. A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth...

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  13. Two similar springs P and Q have spring constant K(P) and K(Q) such th...

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  14. The potential energy of a particle in a force field is: U = (A)/(r^(...

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  15. The potential energy between two atoms in a molecule is given by, U((x...

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  16. A body of mass 1 kg is thrown upwards with a velocity 20 ms^(-1). It m...

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  17. An engine pumps water continously through a hose. Water leave the hose...

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  18. A block of mass m attached in the lower and vertical spring The spring...

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  19. The potential energy of a system increased if work is done

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