How to Calculate Power Output for Lifting and Flinging Objects?

Thread starter PAstudent
Start date Oct 11, 2015
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Output Power Power output Work

AI Thread Summary

To calculate power output for lifting and flinging objects, the equation P = dW/dt is used, where work (W) must account for both the kinetic energy of the object and the gravitational potential energy when lifting. The initial calculations incorrectly omitted the vertical distance, which is crucial for determining the total work done. The work done to lift the object must be included alongside the work done to fling it at a specified speed. It is important to recognize that the force exerted is constant throughout the lifting process. Accurate power output calculations require considering both horizontal and vertical displacements.

Oct 11, 2015

PAstudent

1. Homework Statement

Homework Equations

P=dW/dt

The Attempt at a Solution

I feel like I did something incorrect because I didn't use the vertical distance at all. If I'm wrong, does it have something to do with the displacement?[/B]

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Oct 11, 2015

Herman Trivilino

Science Advisor

Gold Member

You calculated the work done to fling the sand at a speed of 2.0 m/s from level ground. You need to add in the work done to lift the sand. Hint: the force is constant.

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