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http://img818.imageshack.us/img818/4782/anmol.png check this image this is a question of hc .verma here the gravity is acting downwards while we are considering the centrifugal force upwards hence mg-mv^2/r=reaction force on the car my question is why dont we consider the centripetal force and reaction force=mv^2/r+mg,why do we have to consider centrifugal while centripetal acts on the body to change its direction.......

http://img818.imageshack.us/img818/4782/anmol.png


check this image


this is a question of hc .verma


here the gravity is acting downwards while we are considering the centrifugal force upwards hence mg-mv^2/r=reaction force on the car


my question is


why dont we consider the centripetal force and reaction force=mv^2/r+mg,why do we have to consider centrifugal while centripetal acts on the body to change its direction.......


 

Grade:11

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