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A particle \( A \) of mass \( 10 / 7 \mathrm{~kg} \) is
moving in the positive direction
of \( x \)-axis. At initial position
\( x=0 \), its velocity is \( 1 \mathrm{~m} \mathrm{~s}^{-1} \), then
its velocity at \( x=10 \mathrm{~m} \) is (use
the graph given)
the graph given)
(1) \( 4 \mathrm{~m} \mathrm{~s}^{-1} \)
(2) \( 2 \mathrm{~m} \mathrm{~s}^{-1} \)
(3) \( 3 \sqrt{2} \mathrm{~ms}^{-1} \)
(4) \( \frac{100}{3} \mathrm{~ms}^{-1} \)
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