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Forces and Motion
The Equations for Forces and Motion.
Click on the equation below for more information.
1. acceleration = change
in velocity ÷ time.
a = (v-u) ÷ t
number 1 can be rearranged to give
v - u = a x t or t = (v-u) ÷ a
2. force = mass x acceleration.
F = m x a
number 2 can be rearranged to give
m = F ÷ a or a = F ÷ m
3. weight = mass x gravity.
w = m x g
number 3 can be rearranged to give
m = w ÷ g or g = w ÷ m
4. momentum = mass x
p = m x v
number 4 can be rearranged to give
m = p ÷ v or v = p ÷ m
5. change in momentum =
force x time.
mv - mu = F x t
number 5 can be rearranged to give
F = (mv - mu) ÷ t
See some examples of calculations for the above equations.
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