A ladder AB is spported by a smooth vertical wall ad rough horizontal floor as shown. A boy tarts moving from A to B slowly. The ladder remains at rest, then pick up the correct statements (s):

A ladder 12units long slides in a vertical plane with its ends in contact with a vertical wall and a horizontal floor along x-axis.The locus of a point on the ladder 4 units from its foot has the equation:

A ladder of length 20 feet rests against a smooth vertical wall. The lowerend, which is on a smooth horizontal floor is moving away from the wall at the rate of 4 feet/sec. If the lower end is 12 feet away from the wall, then the rate at which the upper end move, is

A uniform ladder which is 5m long has a mass of 25kg , leans with its upper end against a smooth vertical wall and its lower end on rough ground. The bottom of the ladder is 3m from the wall. Calculate the frictional force between the ladder and the ground . (g=10ms^(-2) )

A uniform ladder of length 3.25 m and weight 250 N is placed against a smooth vertical wall with its lower end 1.25 m from the wall. If coefficient of friction between the ladder and the floor is 0.3, then, find the frictional force acting on the ladder at the point of contact between ladder and floor.

A uniform ladder of length 3.25 m and weight 250 N is placed against a smooth vertical wall with its lower end 1.25 m from the wall. If coefficient of friction between the ladder and the floor is 0.3, then, find the frictional force acting on the ladder at the point of contact between ladder and floor.

A ladder 10 metres long rests with one end against a vertical wall, the other on the floor. The lower end moves away from the wall at the rate of 2 metres/minute. The rate at which the upper end falls when its base is 6 metres away from the wall

A ladder 10 metres long rests with one end against a vertical wall, the other on the floor. The lower end moves away from the wall at the rate of 2 metres/minute. The rate at which the upper end falls when its base is 6 metres away from the wall