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The wheel of radius r is free to rotate about the bent axle CO which turns about the vertical axis at the constant rate \omega ?. If the wheel rolls without slipping on the horizontal circle of radius R, determine a) the expressions for the angular velocity \omega ?? and angular acceleration \alpha ? of the wheel, b) velocity and acceleration of point A at the instant shown. The x ?axis is always horizontal.The wheel of radius

`r`

is free to rotate about the bent axle

`CO`

which turns about the vertical axis at the constant rate

`\omega _(p)`

. If the wheel rolls without slipping on the horizontal circle of radius

`R`

, determine a) the expressions for the angular velocity

`vec(\omega )`

and angular acceleration

`vec(\alpha )`

of the wheel, b) velocity and acceleration of point

`A`

at the instant shown. The

`x`

-axis is always horizontal.