Power is scientifically defined as the...
a.work done on or by an object per unit time.
b.force on an object times the distance the object moves.
c.energy used by an object times the time.
d.force on an object times the time of application.
Answers
Answer: a.work done on or by an object per unit time.
Explanation:
Power, in science and engineering, time rate of doing work or delivering energy, expressible as the amount of work done W, or energy transferred, divided by the time interval t—or W/t. A given amount of work can be done by a low-powered motor in a long time or by a high-powered motor in a short time. Units of power are those of work (or energy) per unit time, such as foot-pounds per minute, joules per second (or watts), and ergs per second. Power is expressible also as the product of the force applied to move an object and the speed of the object in the direction of the force. If the magnitude of the force F is measured in pounds and the speed ν in feet per minute, the power equals Fν foot-pounds per minute. In the International System of Units, power is measured in newton metres per second.