The initial acceleration of the proton is

$2.9 \times 10^{8} m s^{- 2}$
$3.31 \times 10^{2} m s^{- 2}$
$3.12 \times 10^{8} m s^{- 2}$
none of these

3.12 \times 10^{8} m s^{- 2}

none of these

2.9 \times 10^{8} m s^{- 2}

3.31 \times 10^{2} m s^{- 2}

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The initial acceleration of the proton is2.9×108ms−23.31×102ms−23.12×108ms−2none of these