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A particle moving along the circular path with a speed \( v \) at time \( t_{0} \) and its speed increases by \( \mathrm{g} \) in one
\( \mathrm{P} \)
second. If the radius of the circular path be \( r \), then
W
the net acceleration of the particle at \( t_{0} \) is:
(1) \( \frac{v^{2}}{r}+g \)
(2) \( \frac{v^{2}}{r^{2}}+g^{2} \)
(3) \( \left[\frac{v^{4}}{r^{2}}+g^{2}\right]^{1 / 2} \)
(4) \( \left[\frac{v^{2}}{r}+g\right]^{1 / 2} \)
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