A motor does 5,000 joules of work in 20 seconds. What is the power of the motor?

P = W/ t = 5000J/20 sec =250 J/s = 250 watt.

Answered by y7gm7g | 2024-06-10

The **power **of a machine is the rate of energy or work done by the machine. The power for 5000 J of energy in 20 seconds is 250 W.
What is power?
Power is a physical quantity that describes the rate of work done or energy of on an object. The work done is a vector quantity having magnitude and direction. Whereas, power is a scalar quantity.
When a force applied on a body makes its displaced, the force is said to be done work on the body. When the body do work by a **restoring force **then work is said to done by the body.
Work done is the product of power and time.
Given that, work done = 5000 J
time =20 s
power = 5000 J /20 s = 250 W.
Therefore, the **power **of the machine is 250 W.
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Answered by kanikabajaj294 | 2024-06-17

The power of the motor can be calculated using the formula P = t W ​ , which gives a result of 250 watts when 5000 joules of work is done in 20 seconds. This indicates the motor performs 250 joules of work every second.
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Answered by kanikabajaj294 | 2024-10-02