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vkash
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Homework Statement
Q1> there is a cube like jar of water kept at the surface of a lift which is moving with an acceleration of a in upward direction. jar is filled with water. There is a cubical block of wood floating on it's surface. It is slightly pressed and released. find the time period of the Simple harmonic motion.(viscosity of liquid is zero)
Q2> A spring is attached to ceiling in lift will it's time period(of oscillations) change with acceletation of life(I think no).
Q3>A pendulum is attached to ceiling will it's time period vary with acceleration.(I think yes T=2πsqrt(l/g))
After all i come to conclusion that "it is mixed one. I mean if it is inside a lift it may or may not have same time period as it had"
Homework Equations
Archimedes principle and Simple equations of SHM.
The Attempt at a Solution
let me say after slight push it's mean position is displaced by x0.
After a distance x below x0 net force acting on the wooden block is dAx(g+a).
here d is density A is base area of block and g is acceleration due to gravity.
F=dAx(g+a) =mω2x (m is mass of block)
from here T(time period)=2πdqrt(m/[dA(g+a)] ).
IF i am wrong somewhere then please alert me.
(recently updated to firefox 9. it is not responding to spelling mistake so if i have done any mistake then please ignore that)
thanks for reading...
waiting for ur valuable reply..
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