A block of mass \( m \) is projected on a smooth horizontal circular track with velocity \( v \)...

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A block of mass \( m \) is projected on a smooth horizontal circular track with velocity \( v \). What is the average normal
\( \mathrm{P} \) force exerted by the circular walls on the block during its

W motion from \( A \) to \( B \) ?
(1) \( \frac{m v^{2}}{R} \)
(2) \( \frac{m v^{2}}{\pi R} \)
(3) \( \frac{2 m v^{2}}{R} \)
(4) \( \frac{2 m v^{2}}{\pi R} \)
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