Weight from Mass
Weight from Mass
Weight is the gravitational force on a mass — distinct from the mass itself, which never changes.
The weight is W = m·g. where m is the mass and g the gravitational acceleration.
Inputs
m := 75 kg=75 kg
g := 9.81 m/s^2=9.81 m/s^2
Multiply mass by gravity.
W := m·g=735.75 N
Results
On the Moon the same mass weighs about a sixth as much because g is smaller. Scales read weight, then convert to mass assuming Earth gravity.
Assumptions & limitations
- Local gravitational acceleration.
- At rest (no vertical acceleration).
- Mass constant.