Thursday, January 5, 2012

A car whose engine can work at a maximum rate of 20 kW is travelling along a straight horizontal road.?

Con.>The maximum speed of the car is 40 ms^-1.Find the resistance to motion.The car,which is of m 750 kg,comes to a hill of inclination sin^-1(0.1).uming the resistance to be proportional to the speed,& taking g as 10 ms^-2,find the maximum steady speed,at which the car can climb the hill.Find also the retardation when the car is moving up the hill at a speed of 25 ms^-1.Find the resistance to motion.The car,which is of m 750 kg,comes to a hill of inclination sin^-1(0.1).uming the resistance to be proportional to the speed,& taking g as 10 ms^-2,find the maximum steady speed,at which the car can climb the hill.Find also the retardation when the car is moving up the hill at a speed of 25 ms^-1.The car,which is of m 750 kg,comes to a hill of inclination sin^-1(0.1).uming the resistance to be proportional to the speed,& taking g as 10 ms^-2,find the maximum steady speed,at which the car can climb the hill.Find also the retardation when the car is moving up the hill at a speed of 25 ms^-1.Detail: its about work,energy n power..Its mechanics maths question..Here r d ans: 500 N,20 ms^1,0.35 ms^-2..I dnt knw hw 2 do d working..Thnkz

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