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A 40 kg boy climbs a rope that passes ov...

A 40 kg boy climbs a rope that passes over an ideal pulley. The other end of the rope is attached to a 60 kg weight placed on the ground. What is the maximum upward acceleration the boy can have without lifting the weight ? If he climbs the rope with upward acceleration 2 g, with what acceleration the weight will rise up ?

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The correct Answer is:
`0.5 g,g`
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ALLEN -NEWTON'S LAWS OF MOTION & FRICTION-EXERCISE (S-1)
  1. In the system shown, pulley and strings are ideal. The vertically upwa...

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  2. Force F is applied on upper pulley. If F = 30 t where t is time in sec...

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  3. A 40 kg boy climbs a rope that passes over an ideal pulley. The other ...

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  4. A 1kg block B rests as shown on a bracket A of same mass. Constant for...

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  5. Find the reading of the massless spring balance in the given condition

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  6. The system shown adjacent is in equilibrium. Find the acceleration of ...

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  7. A block of mass m lies on wedge of mass. Mas shown in figure. Wit...

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  8. The block A is moving downward with constant velocity v(0.) Find the v...

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  9. Find force in newton which mass A exert on mass B if B is moving to wa...

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  10. Rod A can slide in vertical direction pushing the triangular wedge B t...

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  11. Calculate the relative acceleration of A w.r.t. B if B is moving with ...

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  12. A block is placed on a rough horizontal plane. Three horizontalforces ...

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  13. A force of 100 N is applied on a block of mass 3kg as shown below. The...

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  14. Two trolleys A and B are moving with accelerations a and 2a, respectiv...

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  15. A thin rod of length 1 m is fixed in a vertical position inside a trai...

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  16. A block of mass m(1) = 1 kg is horizontally thrown with a velocity of ...

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  17. A block of mass m lies on wedge of mass Mas shown in figure. Find the ...

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  18. A block of mass 15 kg is resting on a rough inclined plane as shown in...

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  19. In the figure, what should be mass m so that block A slides up with a ...

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  20. Find the acceleration of the block and magnitude and direction of fric...

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