Question

porter carrying a luggage. Is is the porter doing any work? If so then why ? if no then also give reason for your answer​

Answer 1

Answer:

Yes

Explanation:

The porter is applying force in carrying the luggage.

Answer 2

Answer:

Work done by any force is given by dot product of force and displacement of the particle.

So W=F.S

Where F,S are vector quantities and W is scaler quantity.

SI Unit of work done is N.m and also called Joule(J).

So work done in above case is W=FSCosθ, here θ=90

∘

Because person moves horizontal and force of gravity is vertical.

So work done is Zero.

Explanation:

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