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. 1,715 N B. 686 N C. 2,058 N D. 2,401 N
Physics · High School · Wed Jan 13 2021
Answered on
Given:
Volume = 0.07m^3
Density= 3500 kg/ m^3
Determine the force of gravity acting on the object.
Acceleration due to gravity:
= 9.8m/s^2
Formula for force:
F = ma
Formula for density:
d = m/v
Solution:
In order to determine the force of the object, we simply must determine first its mass. To do so, we solve for the mass in terms of density.
d = m/v
3500 kg/m^3 = m / 0.07 m^3
m = (3500 kg/m^3 )(0.07 m^3)
m = 245 kg
Now that we''ve determined the mass, we can equate it in the formula for force.
F = ma
F = (245 kg)(9.8m/s^2)
F = 2401 N
Final answer:
D. 2401 N