A rocket is ejecting $50\,g$ of gases per sec at a speed of $500\,m/s.$ The accelerating force on the rocket will be ............ $N$
A rocket is ejecting $50\,g$ of gases per sec at a speed of $500\,m/s.$ The accelerating force on the rocket will be ............ $N$
$125$
$25$
$5$
$0$
A rocket is ejecting $50\,g$ of gases per sec at a speed of $500\,m/s.$ The accelerating force on the rocket will be ............ $N$
$F = u\;\left( {\frac{{dm}}{{dt}}} \right) = 500 \times 50 \times {10^{ - 3}} = 25\,N$
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