What is the work done against gravity when a body is moved horizontally along a frictionless surface ?

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Solution

Work done against gravity when a body is moved horizontally along a frictionless surface is zero.

Force of gravity acts vertically downward, while the body is move horizontally. Thus, the force of gravity is not causing the motion. So, the work done by the force of gravity is zero.

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Q. What is the work done against gravity when a body is moved horizontally along a frictionless surface?

Q. What is the work done against gravity when a body of mass 10kg is moved horizontally along a frictionless surface? (

g = 10 m / s^{2}

)

Explain work done when a body is moved horizontally along the friction less surface. [2 MARKS]

Q. Assertion (A) : No work is done by gravitational force if a body moves along a horizontal surface.
Reason (R) : In horizontal motion, angle between gravity and displacement is

90^{0}

(a) When do we say that work is done? Write the formula for the work done by a body in moving up against gravity. Give the meaning of each symbol which occurs in it.

(b) How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?

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What is the work done against gravity when a body is moved horizontally along a frictionless surface ?

Work done against gravity when a body is moved horizontally along a frictionless surface is zero. Force of gravity acts vertically downward, while the body is move horizontally. Thus, the force of gravity is not causing the motion. So, the work done by the force of gravity is zero.

Work done against gravity when a body is moved horizontally along a frictionless surface is zero.

Force of gravity acts vertically downward, while the body is move horizontally. Thus, the force of gravity is not causing the motion. So, the work done by the force of gravity is zero.