The rollercoaster car is raised a vertical distance of 35 m to point A by a motor in 45
seconds.
The mass of the rollercoaster is 600 kg.
The motor has a power rating of 8 000 W.
(a) Calculate the percentage efficiency of the motor.
Gravitational field strength = 9.8 N/kg.
Answers: 3
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The rollercoaster car is raised a vertical distance of 35 m to point A by a motor in 45
seconds.
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