Question

1. what force is needed to lift a 7550 kg helicopter that is accelerating at 2.55 m/s²?

Explanation:

Step1: Determine the formula

According to Newton's second law \(F = ma\), and when lifting, the force \(F\) needs to overcome the gravitational force \(mg\) and provide the accelerating force \(ma\). So the total force \(F=m(g + a)\) where \(g = 9.8\ m/s^{2}\), \(m=7550\ kg\), \(a = 2.55\ m/s^{2}\).

Step2: Substitute the values

Substitute \(m = 7550\ kg\), \(g=9.8\ m/s^{2}\), \(a = 2.55\ m/s^{2}\) into the formula \(F=m(g + a)\).

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Answer:

\(93242.5\ N\)