Question

If the mass of an object is 6 lbm, what is its weight, in lbf, at a location where g = 32.0 ft/s2?

Answer 1

Using formula:

$w = m\times g$   -(1)

where w is weight of object,

m is mass of the object, and

g is the acceleration of gravity.

mass, m = 6 lbm (given)

acceleration of gravity, g = $32.0 ft/s^{2}$ (given)

Now, substituting the values in equation (1):

$w = 6 lbm \times 32 ft/s^{2} = 192 lbmft/s^{2}$

Since, $1 lbf = 32.174 lbm ft/s^{2}$

So, $w = 192\times \frac{1}{32.174 lbf}$

$w = 5.976 lbf$

Hence, the mass of an object is 5.976 lbf.