If an object weighs 39.2 N on Earth, what is its mass?

M = W/g = 39.2/9.8 = 4.0 kg

4- c

To determine the mass of an object, you need to use Newton's second law of motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a). In this case, the force experienced by the object is its weight.

Weight (W) is defined as the force exerted on an object due to gravity and is calculated using the formula W = m * g, where m is the mass of the object and g is the acceleration due to gravity on Earth (approximately 9.8 m/s^2).

Given that the weight of the object is 39.2 N, we can set up the equation as follows:

39.2 N = m * 9.8 m/s^2

To solve for mass (m), divide both sides of the equation by 9.8 m/s^2:

m = 39.2 N / 9.8 m/s^2

m ≈ 4 kg

Therefore, the mass of the object is approximately 4 kg.