Rod $OA$ rotates counterclockwise at a constant angular rate ${}^{}=4ra\frac{d}{s}.$ The double collar $B$ is pin$-$connected together such that one collar slides over the rotating rod and the other collar slides over the circular rod described by the equation $r=(1\mathrm{.}6cos)m.$ Both collars have a mass of $0\mathrm{.}6$ kg $.$ Motion is in the vertical plane. $($Figure $1)$

Part A

Determine the magnitude of the force which the circular rod exerts on one of the collars at the instant $=45$

Express your answer to three significant figures and include the appropriate units.

$F=17\mathrm{.}3$

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Part B

Determine the magnitude of the force that $OA$ exerts on the other collar at the instant $=45.$

Express your answer to three significant figures and include the appropriate units.

Figure

$1$ of $1$

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