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A block of mass m is stationary with res...

A block of mass m is stationary with respect to a rough wedge as shown in figure. Starting from rest in time t, (m = 1 kg, `theta=30^(@), a = 2 m//s^(2)`, t = 4 s) work done on block :

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MOTION-WORK, POWER & ENERGY -Exercise - 2
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  2. The kinetic energy of a particle moving along a circle of radius R dep...

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  3. A 242 × 10^(4)kg freight car moving along a horizontal rail road spur ...

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  4. A spring is held compressed so that its stored energy is 2.4 J. Its en...

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  5. The system is released from rest with both the springs in unstretched ...

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  6. In the figure shown, the system is released from rest with both the sp...

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  10. The force required to row a boat over the sea is proportional to the s...

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  15. A motor of 100 H.P. is moving with a constant velocity of 72 km/hour. ...

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  17. A block of mass m = 0.1 kg is released from a height of 4 m on a curve...

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  19. A particle of mass m attached to a string of length l is descending ci...

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