CAIE A-Level Physics A2 12.2.3 A R 2 And a V2 R

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During a time interval of 1400 s , the centre of gravity of the piece of modelling clay in Fig. 1.1 moves through a total distance of 0.44 m .

Calculate the magnitude of the centripetal acceleration of the piece of modelling clay.
centripetal acceleration = $\mathrm{ms}^{-2}$

$a=r \omega^{2}$ $\begin{aligned} =0.18 \times\left(1.745 \times 10^{-3}\right)^{2} =5.5 \times 10^{-7} \mathrm{~m} \mathrm{~s}^{-2} \end{aligned}$

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CAIE A-Level Physics A2 12.2.3 A R 2 And a V2 R Topic Practice