Question

Define 1 J of work.

NCERT Class IX
Sciences - Main Course Book

Chapter 11. Work and Energy

Answer 1

When a force of 1 Newton move the body through a distance of 1 m in its own direction then the work done is known as 1 joule.

The SI Unit of work is called joule which is denoted by the J.

I joule,= 1 newton × 1 metre

1 J = 1 Nm

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Hope this will help you.....

Answer 2

Hey there!

Work is defined as scalar product of force and displacement.

The expression for the work done when a force is acting on an object in the direction of its displacement is as follows:

W = F . S

where,

F = magnitude of force

S = displacement

1 joule is defined as the the work done when a force of 1 N displaces an object at a distance of 1 m.

Hope It Helps You!