PLS HELP$($b$)$ At the given instant as shown in Figure Q$1($b$),$ angular velocity of bar $AB$ is $40ra\frac{d}{s}$ anticlockwise. Determine:

$($i$)$ the angular velocity of rod $CD.$

$(6$ marks$)$

$($ii$)$ the magnitude of velocity at the midpoint of rodBC.

$(2$ marks$)$

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$($c$)$ Explain with reason whether do you agree with the statement $"$An object with constant nonzero acceleration can never stop and remain at rest". $(4$ marks$)$

$[$Total : $25$ marks$]$