Physics Flashcards
(12 cards)
What is the formula for the force of friction (Ff)?
Coefficient of friction*FN
What is the formula for normal force (FN)?
mgcos(θ)
What is the formula for normal force if there is an additional force acting at an angle?
mg - Fsin(θ) if it is at an upwards angle
mg + Fsin(θ) if it is at a downwards angle
What is the equation for final velocity squared?
Vf^2 = Vi^2 + 2a*Δx
What are possible formulas for power?
P = W/t
P = FVcos(θ)
How are friction force and applied force related if the object has a constant velocity?
a = 0
ΣF = m*a = 0 = Fa - Ff
Fa = Ff
What is the work energy equation?
ΔE = W
What is the formula for work?
W = Fdcosθ
What is the unit of work?
1 joule = 1J = 1N*m
The unit of all forms of energy since work is simply energy being transferred
What is the formula for kinetic energy?
K = ½mv^2
What is the formula for gravitational potential energy?
Ug = mgy
What is the formula for elastic potential energy?
Us = ½kx^2
