Question

What is the magnitude of the force of gravity acting on a box that has a mass of 100 kilograms and is at sea level?
A. 10.20 newtons
B.98 newtons
C. 1,020 newtons
D. 980 newtons

Answer 1

Here is a useful formula:

\[W=mg\]
- W is the magnitude of the weight force (unknown)
- m is the mass (100 kg)
- g is the constant acceleration due to gravity on Earth's surface (9.8 m/s/s)

Answer 2

D

Answer 3

W = weight of some object, usually measured in lb or N. The 'm' means mass and g is the gravity.

So if we are solving for the weight of an object we calculate by using W = m*g

You have all the variables so you can solve for W.

Answer 4

m = 100 kg and g = 9.81 m/s^2