Recent content by LBenson

Well i worked out the Angular Velocity at the bottom, is that what you're asking?

I should probably include that the answer is 4.43 m/s i just don't know how to get it

Homework Statement A uniform circular steel disc of mass 20kg and diameter 0.4m has a radius of gyration equal to 0.14m. It is lifted vertically 2.0m, and placed on an incline. The flywheel is then released and rolls down the incline without slipping. Find : a) the potential energy of the...

If you're curious i got the second part by using θ = (ω2 + ω1) t/2 So θ = (60 + 10) 10/2 θ = 350 rads Needed in revs so to convert: 350/2pi = 55.7revs

Should have refreshed my page a few minutes earlier :) Thanks for the help.

Ok i think i got it. After looking back through my notes i found V=wr (W being angular velocity) I rearranged for w (w=v/r) and worked out the angular velocity for both the 3m/s and the 18m/s So w1=3/0.3 (since 0.6 was the diameter 0.3 = radius) = 10rad/s w2=18/0.3 = 60rad/s Then A=w2-w1/t...

Sorry, I'm a tad lost over this whole situation... I really have no clue where to start

Homework Statement A motor car with wheels of 0.6,m diameter accelerates uniformly from 3 to 18m/s in 10 seconds. Find: a) the angular acceleration of the wheels b) the number of revolutions made by each wheel during the speed change Homework Equations A=v-u/t (angular equivilent with...