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Kinetic Energy Theorem Application: Calculating Net Power

Find net power when work done and kinetic energy theorem are equal. Explore effects on velocity when forces vary. Understand laws of physics across inertial frames.

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Kinetic Energy Theorem Application: Calculating Net Power

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  1. F r F is variable

  2. The two quantities are equal ( Work, K.E theorem )

  3. Find the net power If F2=6N =4N =3m/s =2N What will happen to Velocity in both cases A: Stay constant b: increase

  4. I am John, sally is applying a force F and doing a work mgh but mg is doing a work -mgh so net work is zero and K.E should not change Laws of physics are the same in all inertial frames. I am Sally, For me the book is stationary so F is doing no work as well as mg and K.E is zero and do not change.

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