Forum Discussion
RoyJ
Aug 18, 2014Explorer
wilber1 wrote:
What about rocket engines that have no rotating parts? What about when you blow up a balloon and release it? What propelles it across the room?
A given force at a given velocity.
Multiply them together and guess what you get - power! That's why I stated power is universal.
Doesn't matter where the force comes from: a blast of air, jet nozzle, propeller, or torque (which is simply force in angular domain), it generates power at a given velocity. That power is what puts objects in motion and gives them acceleration.
Torque is a mean of producing power, as is the fossil fuel. Saying torque is which get you up the hill is as ridiculous as saying is the dead dinosaur that gets you up the hill. Both correct, just ridiculous in terms of physics and engineering.
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