Work is a Scalar Quantity +ve Work -ve Work energy transferred to the object energy transferred from the object.

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Presentation transcript:

Work is a Scalar Quantity +ve Work -ve Work energy transferred to the object energy transferred from the object

- Work has unit of energy ( Joule J) Work Done Doing Work energy transferred to the object by the force Is the act of transferring the energy

Wire Bead

Wire Bead

Work done by a constant force is

- Work has another unit

How to find the net Work done by several forces? Find the work done by each force and then sum those works Find the net force then

Finding another expression for Work

- - -

O (b) x (c) (a)

Power Average Power Instantaneous Power =

v but or then  or

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