Unit 3 Formula Sheet

Work	W = ( F cos ) S
Potential Energy	PEgravity = - G M m / R PEelastic = (1/2)k x2
On the surface of the Earth g = G ME / RE 2	G = 6.67 * 10 -11 N m2 / kg2 ME = 5.98 * 10 24 kg RE = 6.37 * 10 6 m g = 9.8 m / s2
Kinetic Energy	KE = (1/2) m V2
Work-Energy Theorem	W = Wc + Wnc = KEf - KE0 Wgravity = PE0 - PEf Welastic = PE0 - PEf Wc = Wgravity + Welastic
Total Mechanical Energy	E = KE + PEgravity + PEelastic
Linear Momentum	p = m v p = F t
Power	P = W / t P = F v cos 1 watt (W) = 1 joule/s 1 housepower (hp) = 746 W
Impulse	Impulse = F t
Impulse-Momentum Theorem	Ft = m Vf - m V0
Thrust	T = - (m /t ) ( Vf - V0 )
Pendulum

Unit 2

Unit 4

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