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A wooden box lying at rest on an inclined surface of a wet wood is held at static equilibrium by a constant force F applied perpendicular to the incline. If the mass of the box is 1kg, the angle of inclination is 30^(@) and the coefficient of static friction between the box and the inclined plane is 0.2, the minimum magnitude of F is (Use g= 10m//s^2 )

A wooden box lying at rest on an inclined surface of a wet wood is held at static equilibrium by a constant force vec F applied perpendicular to the incline. If the mass of the box is 1 kg, the angle of inclination is 30^(@) and the coefficient of static friction between the box and the inclined plane is 0.2, the minimum magnitude of vecF is (Use g= 10m//s^(2))

A wooden box lying at rest on an inclined surface of a wet wood is held at static equilibrium by a constant force vec F applied perpendicular to the incline. If the mass of the box is 1 kg, the angle of inclination is 30^(@) and the coefficient of static friction between the box and the inclined plane is 0.2, the minimum magnitude of vecF is (Use g= 10m//s^(2))

An engine of weight 6.5 metric ton is going up an inclined plane of 5 in 13 at the rate of 9km//h . If the coefficient of friction is (1)/(120 . Calculate the power of the engine. Take g=9.8m//s^(2)

If the angle of inclination of the inclined plane is sin^(-1) ((1)/(2)) when the body just starts sliding find the angle of repose and coefficient of static friction between the body and the inclined plane.