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a block of mass 1 kg is pushed against a rough vertical wall with a force of 20n , coefficient of static friction being ¼. another horizontal force of 10N is applied on the block in a direction parellel to the wall. will the block move? if yes in which direction? if no find the frictional force exerted by the wall on the block.?

a block of mass 1 kg is pushed against a rough vertical wall with a force of 20n , coefficient of static friction being ¼. another horizontal force of 10N is applied on the block in a direction parellel  to the wall. will the block move? if yes in which direction? if no find the frictional force exerted by the  wall on the  block.?
 
 

Grade:11

1 Answers

prateek
74 Points
7 years ago
the horizontal force will be cancel out by the reaction force exerted by the wall.
so, only downward force + weight of the object will effect it.
 but the other force of 10N +9.8N (weight of block) will push the block downward.
 

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