Question

A falling boulder has an acceleration of about 25 meters/second². If the force of gravity on the boulder is 75 newtons, what is the mass of the boulder?

A. 3 kg
B. 4 kg
C. 5 kg
D. 6 kg

Answer 1

To find the mass of the boulder, we can use Newton's second law of motion, which states that force equals mass multiplied by acceleration (F = ma). The mass of the boulder is 3 kilograms.

Step-by-step explanation:

To find the mass of the boulder, we can use Newton's second law of motion, which states that force equals mass multiplied by acceleration (F = ma). In this case, the force of gravity on the boulder is 75 newtons and the acceleration is 25 meters/second².

Using the formula F = ma, we can solve for mass:

75 N = m * 25 m/s²

Dividing both sides of the equation by 25 m/s², we get:

m = 75 N / 25 m/s²

Therefore, the mass of the boulder is 3 kilograms (A).