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Last Updated On 23-10-2022 - By Sara

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 :-

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



Next Question :

A block at rest slides down a smooth inclined plane which makes an angle  with the vertical and it reaches the ground in  second. Another block is dropped vertically from the same point and reaches the ground in  second. Then the ratio of  is 

1)

1:2

2)

2:1

3)

1:3

4)


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