Question 1119771
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The mass is m = 200.0 kg


The velocity is v = 2.00 m/s.


The force to decelerate is F = 100 N.


The time "t" to stop is  Ft = mv,     ( <<<---=== the momentum/impulse conservation law)


which gives  t = {{{(m*v)/F}}} = {{{(200*2)/100}}} = 2*2 = 4 seconds.
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