Two bodies moving towards each other collide and move away in opposite directions. There is some rise in
temperature of bodies because a part of the kinetic energy is converted into
. A force "F1" acts on a body through distance "S1" in the direction of motion and does work "W1". Similarly
another force "F2" act on same body through distance "S2" but in opposite to the direction of motion and does
work "W2". Now if F1 = F2 and S1 = S2 then which statement is correct.
A force đ = (đđĖ+ đđŠĖ) newton is applied over a particle which displaces it from its origin to the point đ = (đđĖâ đđŠĖ)
meters. The work done on the particle is:
Initially, four identical uniform blocks, each of mass m and thickness h, are spread on a table
How much work is done on the blocks in stacking them on top of one another?
A man M1 of mass 80 kg runs up a staircase in 15s. Another man M2 also of mass 80 kg runs up the same staircase in 20s. The ratio of the power developed by them will be
A body of mass m kg is lifted by a man to a height of one meter in 30 sec. Another man lifts the same mass to the
same height in 60 sec. The work done by them are in the ratio
A person holds a bucket of weight 60N. He walks 7 m along the horizontal path and then climbs up a vertical distance of 5 m. The work done by the man is:
