1ans it....
15 Answers
33time period is =2pi√Ip/mgl
where l is distance of COM of the setup from hinge and Ip is moment of inertia about the hinge..
:)
1please can u give me the solution...
becoz i have tried all the formulaes....
but still i was not able to get the ans....
33time period is straight forward...
here l=mR/(M+m)
mass =M+m
Ip=MR2/2+mr2/2+mR2
Put these in the formula(that formula is for every setup hanging be it cone, triangle, circle, or any compound structure..)
Tell me if u can't understand any term in what i have written in Ip or any other..
:)
and for velocity write energy conservations..
If u want i will post a bit on it also
:)
33okie.. :)
mgl(1-cosθ)=1/2Ipw2
velocity of com of smaller disc=wR
Put l and Ip from above and let me know if answer is coming or not otherwise i will solve it..
1hey in this case l will be equal to R....
and not the above value
1i was not taking the value of I correctly....
thats why my ans was varying....
thanx a lot buddy....
33no..
but one mistake.. m is total mass M+m and l is the one above mentioned there
(M+m)gl(1-cosθ)=.....
1but dude with that the ans will be wrong....it will be only m....
bcoz there will only be change in the potential energy of C.O.M of small disc..... and not the bigger disc....
33sorry :P
question hi bhoola gaye the
yes l=R and m=m
but RHS is right..
:)