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A force F acting on an object varies whi...

A force F acting on an object varies which distance x as shown in the figure. The force is in N and x in m. The work done by the force in moving the object from x = 0 to x = 6 m is

A

18.0 J

B

13.5 J

C

4.5 J

D

9.0 J

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The correct Answer is:
B
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MOTION-WORK, POWER & ENERGY -Exercise - 3 Section-A
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  2. A bolck of mass 10 kg is moving in x-direction with a constant speed o...

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  3. A body of mass 3 kg is under a constant force which causes a displacem...

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  4. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

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  5. For inelastic collsion between two spherical rigid bodies

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  6. A vertical spring with force constant k is fixed on a table. A ball of...

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  7. A spherical ball of mass 20kg is stationary at the top of a hill of he...

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  8. An explosion blows a rock into three parts. Two parts go off at right ...

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

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  10. Two bodies of mass 1 kg and 3kg have position vectors hati+2hatj+hatka...

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

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

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  13. A plate of mass m, length b, and breadth a is initially lying on a hor...

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  14. force F on a partical moving in a straight line veries with distance d...

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  15. A body mass M hits normally a rigid wall with velocity v and bounces b...

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  16. A person of mass 60kg is inside a lift of mass 940kg and presses the b...

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

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  18. A car of mass m starta from rest and accelerates so that the instyanta...

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  19. A partical of mass m is driven by a machine that deleveres a constant ...

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  20. A block of mass 10 kg, moving in x-direction with a constant speed of ...

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