a body of mass W is kept on a rough surface angle of friction is theta what is minimum force required to just move it?
If u draw free body diagram, u will come to know that the sine component of weight and the force that you apply act down the plane(for min force reqd the force has to be down the plane) and the friction acts up the plane. Normal force perpendicular to surface touching the plane. So writing eqns, F + mg sin a = fs where fs is limiting friction. Rearrange and u'll get the answer.
Three identical balls are placed on a frictionless
horizontal surface touching each other. They stick to
each other because of adhesive. Another ball of same
radius and mass m is placed over the void created by
the three balls. Find the forces applied by the balls
kept on the floor to each other if the system remains
in equilibrium.
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A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.
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Last Activity: 11 Months ago
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