Thread: Kinematics

Hi

I'm trying to do these two questions.

For the 1st Question B=at (Im presuming) from a=an+at

From this at=R*alpha

Therefore 6.3=0.35*alpha
alpha=18rad/s^2

Then what formula do you use? you cant really use w=wo+alpha*(t) because u dont know the time nor the angular velocity
you cant use alpha*d(theta)=wdw either

So im stuck here on Q1

In regards to Q2

Would you do the same as in the question in this thread I posted early but differentiate again to find the velocity along x? I tried to do this but I would come in to problems and get unrealistic answers.

http://www.mathhelpforum.com/math-help/advanced-applied-math/20019-relative-motion-piston-motion.html

Tell me what you think

All Help would be most appreciated!

Edward

Hey All

Could somebody please assist me in these questions Im really stuck and I really wont to learn how to do this I find it quiet interesting.

Thanks Again

Edward

Hey Ive solved both of these question to the best of my ability and I got the first question right! Just need somebody to please check my working for the second question.

Thanks
Edward