Unformatted text preview: 10/6/2021 Ch. 5 Key Equations - University Physics Volume 1 | OpenStax Key Equations
Net
external
force
Newton’s
first law ⃗ net = ⃗ = ∑ ⃗ ⃗ constant when net = 0 N Newton’s
second
law, vector
form ⃗ net = Newton’s
second
law, scalar
form net = Newton’s
second
law,
component
form ∑ ⃗ ⃗ ⃗ = 1 + 2 + ⋯ ∑ ⃗ = ⃗ ⃗ = ⃗ , Newton’s
second
law,
momentum
form ⃗ net = Definition
of weight,
vector
form ⃗ = ⃗ ∑ ⃗ = ⃗ , and ∑ ⃗ = ⃗ . ⃗ 1/3 10/6/2021 Ch. 5 Key Equations - University Physics Volume 1 | OpenStax Definition
of weight,
scalar form = Newton’s
third law ⃗ ⃗ AB = − BA Normal
force on an
object
resting on
a horizontal
surface,
vector
form ⃗ = −⃗ Normal
force on an
object
resting on
a horizontal
surface,
scalar form = Normal
force on an
object
resting on
an inclined
plane,
scalar form = cos Tension in = = 2/3 10/6/2021 Ch. 5 Key Equations - University Physics Volume 1 | OpenStax a cable
supporting
an object of mass m
at rest,
scalar form 3/3 ...
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