15. a pulley system is set up to lift a car off the ground. if the car has a mass of 1440 kg, and it requires a force of 4.75 kn to lift the car, what is the mechanical advantage of the pulley system?

MA = 3.03

We are given;

We are required to calculate the mechanical advantage of the pulley;

                                                   = 14400 N

Therefore; Mechanical advantage = 14400 N ÷ 4750 N

                                                         = 3.03

Thus, the mechanical advantage of the pulley is 3.03

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