explain the different units of work and power.is work is a vector or a sealar quantity
Answers
Answer:
Work, energy and power are the most used terms in Physics. They are probably the first thing you learn in your Physics class. Work and energy can be considered as two sides of the same coin. In this article, we will learn all about the concept of work, power and energy.
Work done is generally referred in relation to the force applied while energy is used in reference to other factors such as heat. Power is defined as work done per unit time.
What is Work, Energy and Power?
Work
Definition Work is said to be done when a force applied to an object moves that object.
Formula We can calculate work by multiplying the force by the movement of the object.
W = F × d
Unit The SI unit of work is the joule (J)
Energy
Definition In physics, we can define energy as the capacity to do work.
Formula For the potential energy the formula is
P.E. = mgh
Unit The SI unit of energy is joules (J), which is named in honour of James Prescott Joule.
Power
Definition Power can be defined as the rate at which work is done i.e. energy converted.
Formula The formula for power is
P = W/t
Unit The unit of power is watt (W).
Explanation:
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Answer:
In the case of work (and also energy), the standard metric unit is the Joule (abbreviated J). One Joule is equivalent to one Newton of force causing a displacement of one meter. In other words, The Joule is the unit of work.