Calculating Power: Answer to Quads @ 180 deg/s

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Homework Help Overview

The discussion revolves around calculating power produced by the quadriceps at a specified angular velocity. The problem involves understanding the relationship between torque, angular velocity, and power, with specific values provided for torque and angular velocity.

Discussion Character

  • Mathematical reasoning, Conceptual clarification

Approaches and Questions Raised

  • The original poster attempts to apply the formula for power using the given torque and angular velocity, questioning the correctness of their calculations and the units used.

Discussion Status

Participants are engaged in verifying the calculations and units used in the original poster's attempt. Some guidance has been provided regarding the correct units for power in the SI system.

Contextual Notes

There is a specific instruction to provide the answer without units, which may influence how participants interpret the problem and present their responses.

PepperABLF12
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Homework Statement



The question provides three equations:

Work = Torque x Angle (angle must be in radians).
Power = Work/Time.
As for linear measures, power can also be calculated as Power = Torque x Angular Velocity (where velocity is in rad/s).

Using the data given, calculate the Power produced by the Quads at an angular velocity of 180 degrees/s. Give your answer to the nearest whole number (no decimal) and DO NOT include the units.

Data: at 180 degres/s, quad torque = 118 Nm.

Homework Equations



Power = Torque x Angular Velocity
P = T x w

The Attempt at a Solution



Power = Torque x Angular Velocity
P = T x w
P = 118 x 180 degrees/s.
P = 21 240.

To find radians, 21 240/57.3 = 370.68 P as radians/s.

Does this sound correct? Please help! :)
 
Physics news on Phys.org
The correct units for power in SI are 1 Nm/s = 1 W
 
Sorry of course it's Watts!

Does the working out/answer look appropriate?
 
Yes.
 

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