Question

sliding a box is work against friction give reason of class 7 on chapter5

Answer 1

Sliding a box is a work done against friction because:

• Frictional force resists any form of motion of an object and works against the kinetic energy of the body.
• Only when two surfaces of an object come into the interface with each other does the frictional force come into play.
• The surface of the box and the surface of another object or the ground on which the box is slid by applying force are involved in sliding a box.
• The sliding friction between the two surfaces is activated as a result of this phenomenon.
• The frictional force acts in the opposing direction of motion in all situations.
• To keep the box sliding, force must be applied in the opposite direction.
• As a result, sliding a box is work done in opposition to friction.

Answer 2

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