Question

A spoked wheel of radius R=0.51m, that may be modelled as a thin annulus, undergoes a pure rolling motion to the right with a speed of vG=3m/s.
The spring has a stiffness of k=1,080N/m, and has an extension of δ=0.01m at the instant shown.
The spring is connected to the wheel axle by a slip ring that allows it to exert a force on the wheel without restricting its rotation.
The wheel has a mass of m=8.7kg. g=9.8m/s ².

(a) What is the magnitude of the wheel’s angular acceleration ( α) at this instant?

(b) What is the magnitude of the friction force ( fs) acting

(c) What is the minimum possible coefficient of static friction ( μs) that can exist between the ground and wheel such that pure rolling occurs at this instant?

Answer 1

what do you mean by this

Answer 2

draw it

it's a 1-D thing

Answer 3

DW solved it.