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COM of Center of Masses

A block is in...

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A block is in limiting equllibrium on a rough horizontal surface if net contact force is √3 times the normal force the coefficient of static friction is

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Q. A block is sliding on a rough horizontal surface. If the contact force on the block is

\sqrt{2}

times the frictional force, the coefficient of friction is:

Q. A block of mass 4kg is kept on a rough horizontal surface as shown in the figure.A horizontal force of 19.4N is just able to slide the block (a) Find the coefficient of static friction.(b) If a force of 16N acts then what is the frictional force acting on the block?

Q. A block of mass

4 k g

is kept on a rough horizontal surface. The coefficient of static friction is

0.8

. If a force of

19 N

is applied on the block parallel to the floor, then the force of friction between the block and floor is:

Q. A block is placed on a rough horizontal surface. The minimum force required to slide the block is (

μ

is coefficient of friction between the contacting surface)

Q. A block of mass m= 2 kg is kept on a rough horizontal surface. A horizontal force F= 5N

μ

= 0.25 is just able to slide the block. Find the coefficient of static friction. If F= 4N, then what is the frictional force acting on the block?

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