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Q.

Which of the following is incorrect about non-uniform circular motion (a_c = centripetal acceleration, a_t = tangential acceleration)?

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a

$\vec{v} \cdot {\vec{a}}_{t} = 0$

b

${\vec{a}}_{c} \cdot \vec{v} = 0$

c

$\vec{ω} \cdot {\vec{a}}_{c} = 0$

d

$\vec{v} \cdot \vec{ω} = 0$

answer is D.

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Detailed Solution

$\vec{v}$ and ${\vec{a}}_{t}$ , are along tangent and $\vec{ω}$ is perpendicular to plane of circular motion

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Which of the following is incorrect about non-uniform circular motion (ac = centripetal acceleration, at = tangential acceleration)?