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        What is vector:addition of vector resolution and what is work, energy and power in details
9 months ago

Arun
14020 Points

work is related to the amount of energy transferred to or from a system by a force. It is a scalar-valued quantity with SI units of Joule.
Work can be represented in a number of ways. For the case where a body is moving in a steady direction, the work done by a constant force {\displaystyle F} acting parallel to the displacement {\displaystyle \Delta x} is defined as
{\displaystyle W_{F}=F~\Delta x\,\!.}
When the force is not acting parallel to the body's direction of movement, the work done is defined as a dot product of the force and the displacement,
Power-
Power is defined to be the rate at which work is performed, or the derivative of work over time. The SI unit for power is the watt.
{\displaystyle P={\frac {\mathrm {d} E}{\mathrm {d} t}}={\frac {\mathrm {d} W}{\mathrm {d} t}}}
Average power is the average amount of work done per unit of time. Thus instantaneous power is the limiting power of the average power as Δt approaches zero
Energy-
Energy is stored work. It has the same units as work, the Joule (J).


9 months ago
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## COUPON CODE: SELF10

### Course Features

• 731 Video Lectures
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• Mind Map
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### Course Features

• 731 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions