# Power

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## Video Clips

#### Power

RealVideo®
6:27 minutes (13:37 - 20:04)

Definition, including P = F*v; example of power for bicycle at two speeds.

Instructor: Prof. Walter Lewin
Prior Knowledge: Force, Drag

## Lecture Notes

#### Power

PDF - 1.6 MB#
Page 5 to page 6

Definitions of power, average power, and instantaneous power; power in terms of force (P=F*v) with examples; energy in terms of power (E = P*t); forms of energy.

Instructor: Prof. Stanley Kowalski
Prior Knowledge: Lecture 15

#### Power

PDF#
Page 13 to page 17

Definitions, including average and instantaneous power; power in terms of force (P= F*v) with examples; energy in terms of power (E= P*t); forms of energy.

Instructor: Prof. Stanley Kowalski
Prior Knowledge: Lecture 15

#### Power and Momentum

PDF
Page 1

Power defined, with equation (P = F*v); impulse defined; center of mass defined; velocity and momentum of center of mass.

Instructor: Dr. George Stephans
Prior Knowledge: Momentum

#### Power

PDF
Page 20 to page 29

Definition of work-kinetic energy theorem (Kf = Ki + Wf,i); work done by non-constant force; work done along an arbitrary path; line integrals; definition of average power; definition of instantaneous power.

Prior Knowledge: Energy and Work, Dot Products, Integrals

#### Work and Dot Product Problem Solving Strategies

PDF
Page 1 to page 4

Class problems.

Instructors: Dr. Peter Dourmashkin, Prof. J. David Litster, Prof. David Pritchard, Prof. Bernd Surrow
Prior Knowledge: Lecture 14

## Practice Problems

#### Stall Torque of Motor

PDF
Problem 3

Calculating the stall torque and torque at maximum power of a motor.

Instructors: Dr. Peter Dourmashkin, Prof. J. David Litster, Prof. David Pritchard, Prof. Bernd Surrow
Prior Knowledge: None

#### Burning Calories

PDF
Problem 3

Computing the work done and calories burned by a cyclist.

Instructors: Dr. Peter Dourmashkin, Prof. J. David Litster, Prof. David Pritchard, Prof. Bernd Surrow
Prior Knowledge: None