A block has a volume of 0.09m3 and a density of 4000kg/m3. What's the force of gravity acting on the block in water

Answer

3,528 N

Explanation

density = mass/volume

ρ = m/v

∴ m = ρv

= 4000 * 0.09

= 360 Kg

Weight is defined as the force that acts on a body and is directed towards the center of the earth.

Weight = mass * acceleration due to gravity

W = mg Where g = 9.8 m/s²

W = 360 * 9.8

= 3,528 N

Volume=0.09m³

Density=4000kg/m³

Force=?

Density=mass/volume ⇒mass=volume*density

m=0.09*4000=360kg

Force=mass*accelaration

F=360*9.8

F=3528N