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Hint

1

Total Energy

K + U

k = kinetic energy

u = potential energy (spring & gravitational)

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2

Kinetic Energy

½mv²

m = mass

v = velocity

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3

Gravitational Potential Energy

mgh

m = mass

g = gravity (9.81 m/s if Earth)

h = height dropped from

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4

Spring Potential Energy

½kΔx²

k = spring constant

Δx = change in displacement

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5

Work

Fx, Pt, PΔv, ΔE

F = force

x = displacement

P = power

t = time

Δv = change in velocity

ΔE = change in energy

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6

Power

w/Δt, Fv

w = work

Δt = change in time

F = force

v = velocity

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7

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