Asked by Jessica
An 83.2-kg propeller blade measures 2.24m end to end. Model the blade as a thin rod rotating about its center of mass. It's initially turning at 175rpm. Find the blade's angular momentum, the tangential speed at the blade tip, and the angular acceleration and torque required to stop the blade in 12.0s.
Answers
Answered by
bobpursley
first, get the moment of inertia for a thin rod, rotating as described.
angular momentum= momentinertia*175*2pI*60 rad/sec
tangential speed= 175*2PI*60*radius
angular momentum= momentinertia*175*2pI*60 rad/sec
tangential speed= 175*2PI*60*radius
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