High School

What is the magnitude of the force of gravity exerted on a 15 kg box at rest? Assume no other forces are acting on the box.

Options:

A. 15 N
B. 9.8 N
C. 147 N
D. 147 m/s\(^2\)

Answer :

Answer:

Correct choice: C. 147 N

Explanation:

Weight

Weight is the force exerted on a body by gravity. It's often expressed with the formula:

W = mg

Where

W = weight

m = mass of the object

g = gravitational acceleration.

The mass of the box is m=15 Kg and the acceleration of gravity is [tex]g=9.8\ m/s^2[/tex], thus:

W = 15*9.8 = 147 N

W = 147 N

Correct choice: C. 147 N

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