ON10 P11 Q18 Lift Motor for Elevator | Oct/Nov 2010 | CAIE A Level 9702 Physics

9702/11/O/N/10: The diagram shows a lift system in which the elevator (mass m1) is partly counterbalanced by a heavy weight (mass m2). At what rate does the motor provide energy to the system when the elevator is rising at a steady speed v? (g = acceleration of free fall) #9702w10p11 #ASforcesP1 #ASnewton2ndP1 #ASpowerP1 #Lv3

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