Laws Of Motion

A constant force acts on two different masses independently producing accelerations and . When the same force acts on their combined mass, the acceleration produced is

A spring balance carries a load. When the load is pulled aside so that the balance makes an angle of with the vertical, the balance reads . The mass of the load is

The square of the resultant of two equal forces acting at a point is equal to three times their product. Angle between them is

A body of mass 3 kg at rest is acted on by a force and the body moves through a distance 20 m in 5 s. Force on the body is

A block of mass 0.1 kg is held against a wall by applying a horizontal force of 5 N on it. If between the wall? and the block is 0.5, the magnitude of the frictional force acting on the block is

A uniform chain of length is lying partly on a table, the remaining part hanging down from the edge of the table. If the coefficient of friction between the chain and the table is , what is the minimum length of the chain that should lie on the table, to prevent the chain from slipping down to the ground?