Answer:
density=3.125pounds/ft^3
weight=4.35lbf
Step-by-step explanation:
Density is a property of matter that indicates how much mass a body has in a given volume.
It is given by the following equation.
ρ=m/v (1)
where
ρ=density
m=mass
v=volume
The weight on the other hand is the force which the earth (or the moon) attracts to a body with mass, this force is given by the following equation
W=mg (2)
W=weight
m=mass
g=gravity
to solve this problem we have to calculate the mass of the component using the ecuation number 2
W=mg
m=w/g
w=25lbf=804.35pound .ft/s^2
g=32.2ft/s^2
m=804.35/32.2=25 pounds
density
ρ=m/v (1)
ρ=25pounds/8ft^3
ρ=3.125pounds/ft^3 =density
weight in the moon
W=mg
W=(25pounds)(5.57ft/s^2.)=139.25pound .ft/s^2=4.35lbf