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------------------------------------------------ What is the mass of an object if it takes a net force of 128 N to accelerate it at a rate of 1.6 m/s²?

A. m = 80 kg
B. m = 64 kg
C. m = 128 kg
D. m = 200 kg

Using Newton’s second law of motion (F = m*a), we can determine that the mass of an object which requires a net force of 128 N to accelerate it at a rate of 1.6 m/s² is 80 kg.

Explanation:

The mass of an object is calculated by using Newton’s second law of motion, which states that the force applied on an object is equal to the mass of the object multiplied by the acceleration of the object (F = m*a). In this scenario, the net force applied on the object (F) is 128 N, and the acceleration of the object (a) is 1.6 m/s². We can rearrange our equation so that mass is the subject (m = F/a). When we substitute the given values into our rearranged equation, we find that the mass of the object (m) is 80 kg. Therefore, option a) m = 80 kg is the correct answer.

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