**Definitions:**

**Slug** (abbreviations: **ps2pf, or lb.s2/ft**): is a unit of mass in the weight-based system of measures, especially within the British Imperial measurement system and in the United States customary measures system. Systems of measure either define mass and derive weights or define a base weight and derive a mass unit. It is the mass that is accelerated by 1 ft/s2 when a force of one pound (lbf) is applied on it.

**Atomic Mass Unit** (abbreviations: **amu, or u**): also known as dalton (symbol: Da), is a standard unit of mass that used on an atomic or molecular scale (atomic mass). One unified atomic mass unit is about the mass of one nucleon (either a single proton or neutron) and equivalent to 1 g/mol.

## How to Convert Slugs to Atomic Mass Units

*Example: How many atomic mass units are equivalent to 0.5 slugs?*

As;

1 slugs = 8.789E+27 atomic mass units

0.5 slugs = Y atomic mass units

Assuming Y is the answer, and by criss-cross principle;

Y equals 0.5 times 8.789E+27 over 1

(i.e.) Y = 0.5 * 8.789E+27 / 1 = 4.3945E+27 atomic mass units

Answer is: 4.3945E+27 atomic mass units are equivalent to 0.5 slugs.

*Practice Question: Convert the following units into amu:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 55.96 slug

( ii ) 53.81 slug

( iii ) 63.44 slug