Question 1205987
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Use the formula  {{{(mv^2)/2}}} = E  for kinetic energy E, known from any Physics textbook.


Substitute given values for the mass m and for kinetic energy E and find v from equation

    {{{(52*v^2)/2}}} = {{{1.6*10^4}}}.
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Happy calculations &nbsp;(&nbsp;!&nbsp;)


It is &nbsp;&nbsp;2 x 2 = 4 &nbsp;level of complexity question / problem.