Le Mouvement Circulaire Flashcards
1
Q
What is the name, unit and formula of the following symbols?
θ, ω, T, f, s, v
A
θ: angular displacement, radians (2π x angle in degrees/360 degrees)
ω: angular velocity, rad s^-1, 2π/T OR 2πf
T: period, seconds (s), same formula as ω
f: frequency, Hz OR s^-1, f=1/T OR same formula as ω
s: distance travelled (in circular path), metre (m), s=rθ
v: linear speed OR linear velocity (m s^-1), v=rω
2
Q
What is the formula for centripetal acceleration and centripetal force?
A
Centripetal…
Acceleration: a=rω²=v²/r
Force: Fnet=mv²/r=mω²r
(Since Fnet=ma)
3
Q
Total E=…?
A
Total E=Ek+Ep=constant
4
Q
Centripetal acceleration/force always points where?
A
Centre of circular path
