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a horizontal force of 10N is necessary to just hold a block stationary against a wall . The coefficient of friction between the block and the wall is 0.2. The weight of the block is?

a horizontal force of  10N is necessary to just hold a block stationary against a wall . The coefficient of friction between the block and the wall is 0.2. The weight of the  block is?

Grade:12th pass

2 Answers

Neeti
571 Points
8 years ago
horizontal force on body = normal reaction force = 10 N 
so frictional force = 10 x 0.2 = 2N which just counteracts the weight of the body therefore weight of the body is also 2N
Kushagra Madhukar
askIITians Faculty 628 Points
3 years ago
Dear student,
 
horizontal force on body = normal reaction force = 10 N 
so frictional force = 10 x 0.2 = 2N which just counteracts the weight of the body therefore weight of the body is also 2N
 
Thanks and regards,
Kushagra

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