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#103183 hajime (User) Fresh Boarder Posts: 1 Mechanical power 4 Months, 1 Week ago   I read an article which defines mechanical power as torque times angular velocity. Why we do not use absolute(torque times angular velocity)? What are the physical interpretations for positive and negative mechanical power? Thanks.   Logged     The administrator has disabled public write access. #103184 vegasdave (User) Gold Boarder Posts: 773 Re:Mechanical power 4 Months, 1 Week ago   Bike run good Grunt Bike run fast= positive Bike run bad Grunt Bike run slow=negative   Logged     Last Edit: 2008/07/25 10:31 By vegasdave.   If Your Not Moving Forwards,Your Moving Backwards Live To Ride,Ride To Live 06 Road Star Candy Red SMOKIN!!!!   The administrator has disabled public write access. #103189 DocShadow (Admin) Hmmmm .... send beer Admin Posts: 10822 Re:Mechanical power 4 Months, 1 Week ago   hajime wrote: I read an article which defines mechanical power as torque times angular velocity. Why we do not use absolute(torque times angular velocity)? What are the physical interpretations for positive and negative mechanical power? Thanks. You're on a motorcycle site ... and I suspect you are trolling? n'est-ce pas? Maybe you can elaborate on the importance of moment arm and how it relates to the Force imparted by the engine? Assuming a constant Force (unmodified engine) how would a change in the momentum arm affect my Torque and what changes would you recommend to increase my Torque? Doc   Logged     My Bike Website   The administrator has disabled public write access. #103201 RoadieFF (Moderator) In the time of chimpanzees I was a monkey. Moderator Posts: 1800 Re:Mechanical power 4 Months, 1 Week ago   When you have a force at a certain distance then we need a momentum to have equilibrium, it's as easy as that. Without torque no equilibrium. Suppose we have bar with a fixed point. At the free end of the bar there is a force. Action=Reaction but we can't have a reaction force in the free point because there's nothing that can cause a reactionforce so the force will try to press the bar down. With the force being perpendicular on the bar and the bar being indeformable, it will cause a rotation with the radius being the distance from the free point to the fixed point on the bar. Thus the force causes a rotation, thus in the fixed point we need to write a momentum in the opposite direction to have equilibrium. So in short: The reason for torque is to write equilibrium.   Logged       The administrator has disabled public write access. #103207 smhowse (User) NOPE, it's a Roadstar! Platinum Boarder Posts: 1463 Re:Mechanical power 4 Months, 1 Week ago   Me twist throttle and bike go fast throw me back in seat with big stupid grin. Me brake and me grin goes away As it has been said "IF YOU DON"T RIDE YOU DON"T KNOW" Steven   Logged     2005 Midnight Silverado   The administrator has disabled public write access. #103213 Cougar (User) Platinum Boarder Posts: 2703 Re:Mechanical power 4 Months, 1 Week ago   The shorter the momentum arm the higher the torque I think ...dam that hurt ...Coug   Logged       The administrator has disabled public write access. #103218 Cougar (User) Platinum Boarder Posts: 2703 Re:Mechanical power 4 Months, 1 Week ago   vegasdave wrote: Bike run good Grunt Bike run fast= positive Bike run bad Grunt Bike run slow=negative Naaaaa you got it all wrong Vegas he meant if you connect the positive cable to the negative post and the negative cable to the positive post the bike runs backwards..it was a trick question... ....Coug   Logged     Last Edit: 2008/07/25 14:56 By Cougar.     The administrator has disabled public write access. #103221 bushrjackson (User) she's pretty EH? Senior Boarder Posts: 394 Re:Mechanical power 4 Months, 1 Week ago   Positive mechanical power --- if YOU hit someone in the beak with a wrench Negative mechanical power --- if YOU get hit in the beak with a wrench bushr   Logged     2006, 3\\\\\\\" HK rez tec\\\\\\\'s   The administrator has disabled public write access. #103228 StarCruiser06 (User) If you can't be with the one you love... Wait! Gold Boarder Posts: 895 Re:Mechanical power 4 Months, 1 Week ago   hajime WROTE: I read an article which defines mechanical power as torque times angular velocity. Yep! That's very accurate... I twist the throttle (torque...) real hard (lots of torque) and my bike moves real fast perpendicularly from where I was standing (angular velocity)! BTW: hajime...   Logged     Over 50...? Never miss the oppertunity to pee, never waste an erection... And never, ever, trust a fart!   The administrator has disabled public write access. #103287 Curt (User) Never to old to ride! Platinum Boarder Posts: 3070 Re:Mechanical power 4 Months, 1 Week ago   What the heck have you guys been SMOKIN?????????   Logged     Black Ice is Shinny, Black Ice is Deadly, Ya Wanna Ride My BlackIce?   The administrator has disabled public write access.

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