θ=ωt=vr.t
So tangential velocity along BL is v...and centre of mass vel is v as well, angle between these 2 vectors is θ, so evaluate the resultant velocity....
A hoop of radius r rolls over a horizontal plane with constant velocity v without slipping. The velocity of any point on the hoop t seconds after it passes the top position is
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UP 0 DOWN 0 0 4
4 Answers
Devil
·2009-08-02 09:48:25
Debotosh..
·2009-08-02 10:14:16
the path of a point on the circumference is a cycloid and the distance moved by this point in one full rotation is 8R (R= radius of the circle)
from the figure:
VP = VC + VPC
=> | VP| = √(V2 + V2 +2.V.V.COS(∩-θ)
= 2V sin θ/2
please take care because i have considered the bottommost point as the start !!