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A block of weight 5N is pushed against a vertical wall by a force 12N. The coefficient of friction between the wall and block is 0.6. The magnitude of the force exerted by the wall on the block is

1)

12 N

2)

5 N

3)

7.2 N

4)

13 N


Question ID - 100381 | Toppr Answer

A block of weight 5N is pushed against a vertical wall by a force 12N. The coefficient of friction between the wall and block is 0.6. The magnitude of the force exerted by the wall on the block is

1)

12 N

2)

5 N

3)

7.2 N

4)

13 N

1 Answer - 5876 Votes

3537

Answer Key : (4) -

Wall applies 2 forces of the block (i) normal reaction,  N, and (ii) frictional force,  N tangentially upward

 Total force exerted by wall on block

N



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