Question

An object accelerates 7.2 m/s2 when a force of 4.0 newtons is applied to it.

Answer 1

Answer:

.556 kg

Explanation:

Newton's second law is that force = mass x acceleration, or F = ma.

Let's apply that here.

F = ma

4.0 N = m (7.2 m/s^2)

4.0/7.2 = m

m = .556 kg.

If you're having trouble with units, remember that Newtons are kg*m/s^2, so your mass will be in kilograms.

Answer 2

.5kg

Because the formula for force is Force = mass multiplied by acceleration, so you would divide Force by the acceleration to find your mass.