A meter scale of mass `400 gm` is lying horizontally on the floor. If it is to be held vertically with one end touching the floor, the work to be done is

A bicycle chain of length 1.6 m and of mass 1 kg is lying on a horizontal floor. If g = 10 ms^(-2) , the work done in lifting it with one end touching the floor and the other end 1.6 m above the floor is

A uniform rod of length 4 m and mass 20 kg is lying horizontal on the ground. The work done in keeping it vertical with one of its ends touching the ground, will be -

A metre scale of mass 200 g, is lying on a horizontal table. What is the work done by student in making it stand vertically on one of its ends?

n' identical cubes each of mass 'm' and edge 'L' are on a floor. If the cubes are to be arranged one over the other in a vertical stack, the work to be done is

A meter stick is hold vertically with one end on the floor of the sticks does not move. The velocity of the other end when it hits the floor, will be

A plate of mass m , length b, and breadth a is initially lying on a horizontal floor with length parallel to the floor and breath perpendicular to the floor. Find the work done to erect it on its breadth.

A plate of mass m , length b, and breadth a is initially lying on a horizontal floor with length parallel to the floor and breath perpendicular to the floor. Find the work done to erect it on its breadth.

A rod of mass m and length l is lying on a horizontal table. Work done in making it stand on one end will be