SHM Flashcards
1
Q
Ω(angular velocity)=?
A
2πv(frequency) or 2π/T
2
Q
If x=AsinΩt + BcosΩt then x=A’ sin(Ωt+∆). Value of A’ is? Also Tan∆=?
A
A’ = √A²+B²
Tan∆ = B/A
3
Q
Spring in Combination?
A
Series:
1/Knet =1/K1 +1/K2
Knet= K/n
Parallel:
Knet = K1 + K2
Knet = nK
4
Q
Cutting of Spring?
A
K=YA/L
K is inversely proportional to L.
5
Q
Total Energy in SHM?
A
Total Energy= ½kA²
6
Q
Formula of time period in a physical pendulum?
A
T = 2π√I/mgl effective
I: MOI
7
Q
T of a large pendulum?
A
84.6 mins
8
Q
Formulae of SHM in a tunnel?
A
Ω=√g/R
v=1/2π√g/R
T=2π√R/g
9
Q
Formulae of SHM in liquid?
A
Ω= √DAg/m and similarly
10
Q
Relations of a liquid in a U-Tube?
A
T = 2π√l/2g
