Question

A block has a volume of 0.07 m3 and a density of 3,500 kg/m3. What's the force of gravity acting on the block (and weight) in the air? A. 2,058 N B. 686 N C. 1,715 N D. 2,401 N

Answer 1

Answer:
F = 2401 Newton

Explanation:
The force of gravity acting on the body can be calculated as follows:
F = mass * gravity

Therefore, we would need to get the mass of the body.
Density of the body can be calculated as follows:
density = mass / volume
We are given that:
density = 3500 kg/m³
volume = 0.07 m³
Therefore, we can substitute to get the mass of the body as follows:
3500 = mass / 0.07
mass = 3500 * 0.07
mass = 245 kg

Now, back to our force formula, we can now substitute to get the force of gravity as follows:
F = mass * gravity
F = 245 * 9.8
F = 2401 Newton

Hope this helps :)

Answer 2

The Correct answer to this question for Penn Foster Students is: 2401 N