Question

Write down the definition of work & energy with examples.

Answer 1

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Answer 2

Answer:

The work-energy principle states that an increase in the kinetic energy of a rigid body is caused by an equal amount of positive work done on the body by the resultant force acting on that body.

Explanation:

= (1/2) mv 2 Kinetic energy is a scalar quantity with the same units as work, joules (J). For example, a 2 kg mass moving with a speed of 3 m/s has a kinetic energy of 9 J. The above derivation shows that the net work is equal to the change in kinetic energy.