I have found my mistake...
The Inertia was right but I needed I did second part wrong.
2pi/3600s = 1.75E-3 rad/s for minute hand
2pi/43200s = 1.45E-4 rad/s for hour hand
then
(624.5kg*m^2)( 1.75E-3 rad/s) = 1.110375 for minute hand and repeat for hour hand.
Homework Statement
The hour and minute hands of Big Ben in
London are 2.64 m and 4.5 m long and have
masses of 69.4 kg and 94 kg respectively.
1) Calculate the total angular momentum of
the minute hand about the center point.
Treat the hand as long, thin rod. Treat “into
the clock”...
Homework Statement
A bicycle is turned upside down while its
owner repairs a flat tire. A friend spins the
other wheel of radius 0.4 m and observes that
drops of water fly off tangentially. She mea-
sures the height reached by drops moving ver-
tically. A drop that breaks loose from...
Would that be the same as I wrote above in the third part of my equations...
but what you wrote down is the same thing but without the negative, since we are talking about momentum of average force which should be positive. So I originally had it to start with, but negative because I was...
I have found my error. I plugged in .227 seconds instead of .277 seconds to get the right answer.
And to kuruman... I can and it worked. basically, what i did was found the momentum going in minus the momentum going out, the devided by the correct time to get the adverage force.
so the...
Homework Statement
A 4 kg steel ball strikes a wall with a speed
of 16 m/s at an angle of 50.6◦ with the normal
to the wall. It bounces off with the same
speed and angle, as shown in the figure.
http://img517.imageshack.us/img517/4498/physicspic1.png"
If the ball is in...
Yes, it is the diameter of 10.8 plus the 2.34sin(29.4) then divide by 2 to find radius, but I am still trying to find relations to get from not having a time and not having a velocity to finding them.
As to your first question http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/FTL.html" this explains many ways you can.
question 2 ) good luck! :)
I am aware of this, but from what my book has and what I have been trying to find out, I can't seem to figure out where to start since I have to factor in the radius of the axle the chains are attached to. Which is where I am stuck trying to figure out how to start.
Homework Statement
A) An amusement park ride consists of a rotating
circular platform 10.8 m in diameter from
which 10 kg seats are suspended at the end
of 2.34 m massless chains. When the system
rotates, the chains make an angle of 29.4◦ with
the vertical...