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  2. A person running in a circular track of radius 100m, with tangential acceleration 10 ms. Then his angular acceleration is a) 0.1 rad.s? b) 10 rad.s-2 c) 0.1 rad.s-2 d) 10 rad.s
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A person running in a circular track of radius 100m, with tangential acceleration 10 ms. Then his angular acceleration is a) 0.1 rad.s? b) 10 rad.s-2 c) 0.1 rad.s-2 d) 10 rad.s

Answers (1)
A avinash.dongre

tangential acceleration=angular acceleration×radius

That is

a_t=\alpha *r

here, \ a_t=10 \ m/s^2, r=100 m\\\Rightarrow \alpha =\frac{a_t}{r}=\frac{10}{100}=0.1 \ rad/s^{2}

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