Question $23(3\mathrm{.}5$ points$)$

A baseball of mass $0\mathrm{.}145$ kg is thrown at a speed of $38\mathrm{.}0\frac{m}{s}.$ The batter strikes the ball with a force of $23,000N.$ The bat and ball are in contact for $0\mathrm{.}500$ ms $.$ Assuming that the force is exactly opposite to the original direction of the ball, determine the final speed $v_f$ of the ball.

$38\mathrm{.}0$ m$/$s

$79300$ m$/$s

$39\mathrm{.}7\frac{m}{s}$

$41\mathrm{.}3\frac{m}{s}$

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