A force of $100 \,dynes$ acts on a mass of $5\, gram$ for $10\, sec$. The velocity produced is ......... $cm/sec$
$2000$
$200$
$20$
$2$
A force of $100 \,dynes$ acts on a mass of $5\, gram$ for $10\, sec$. The velocity produced is ......... $cm/sec$
$v = u + at = 0 + \left( {\frac{F}{m}} \right)\;t = \left( {\frac{{100}}{5}} \right) \times 10 = 200\;cm/\sec $