A solid cube with one side of 17 cm is made up a material wi

A solid cube with one side of 17 cm is made up a material with density of 1856 lbm/ft3.

What will be the force in units of lbf required to move the cube with an acceleration of 9.5 m/s2?

Solution

17 cm = 0.557743 ft
so vol of cube =0.17346 ft^3

mass of the cube= vol*density = .17346ft^3*1856 lbm/ft^3
= 321.94 lbm

9.5 m/s^2 =31.167979 ft/s^2

so Force req =m*a= 321.94 lbm * 31.167979 ft/s^2 = 10034.33 lbf