Question

define work and its types? (3 marks) ​

Answer 1

Work is a scalar quantity and is the product of two vector quantities.

work is of three types

• Positive work- when the force and the displacement are in the same direction(theta=0 degrees)

• Negative work- When the force and the displacement are in the opposite direction(theta=180 degrees)

• Zero work- When the applied force does not cause displacement(theta=90 degrees)