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A block of mass 2 kg is pulled along cir...

A block of mass 2 kg is pulled along circular arc from position X to Y as shown in figure. The work done by the horizontal force is pulling the block from X to Y is

A

FRsin30°

B

FRcos30°

C

FRtan30°

D

FRcot30°

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The correct Answer is:
A
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AAKASH INSTITUTE ENGLISH-MOCK TEST 8-Example
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  2. The velocity of a particle of mass 1 kg is given by v=10sqrtx the work...

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  3. A block of mass 2 kg is pulled along circular arc from position X to Y...

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  4. Two bodies of mass 1 kg and 2 kg have equal momentum. The ratio of the...

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  5. A bullet of mass 50 g enters a block of thickness t with speed of 500 ...

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  6. 1 electron volt is equal to

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  7. A position dependent force F acting on a particle and its force-positi...

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  8. When a body is thrown up , work done by gravity on the body is

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  9. A force of 10 N holds an ideal spring with a 20 N/m spring constant in...

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  10. A small stone of mass 0.4 kg tied to a massless inextensible string is...

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  11. Figure shows the vertical section of a frictionless surface. A block o...

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  12. The potential energy of a weight less spring compressed by a distance ...

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  13. A frictionless track ABCDE ends in a circular loop of radius R. A body...

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  14. A particle is rotated in a verticle circle by connecting it to the end...

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  15. If two persons A and B take 2 seconds and 4 seconds respectively to li...

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  16. A small stone of mass 50 g is rotated in a vertical circle of radius 4...

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  17. a block of mass 0.1 kg attached to a spring of spring constant 400 N/m...

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  18. Assertion:- A body may gain kinetic energy and potential energy simult...

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  19. Potential energy of a particle at position x is given by U = (x^2 - 4x...

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  20. Two springs A and B(kA=2kB) are stretched by applying forces of equal ...

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