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A force of 100 N is applied on a block o...

A force of `100 N` is applied on a block of mass 3kg as shown below. The coefficient of friction between wall and the block is `1//4`. The friction force acting on the block is :

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20 N vertically downward
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ALLEN-NEWTON'S LAWS OF MOTION & FRICTION-EXERCISE (S-1)
  1. A 1kg block B rests as shown on a bracket A of same mass. Constant for...

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  2. In the figure shown, all surfaces are smooth and block. A and wedge B ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  19. Block M slides down on frictionless incline as shown. The minimum fric...

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  20. Coefficient of friction between 5 kg and 10 kg block is 0.5. If fricti...

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