Question

When a 4kg rifle is fired the 10 g bullet recieves an acceleration of 3*10^6cm/s the magnitude of the force acting on the rifle is

Answer 1

F=m*a  = 0.010*3*10^4  =300 N

Answer 2

Answer:-

Force = 300 N

Explanation :-

To find :-

Find force ,

Given :-

$\bf{mass \: of \: bullet \:( m) = 10 \: g} \\ \\ \bf{acceleration \: = 3 \times {10}^{6} \: \: \frac{cm}{ {s}^{2} } }$

Solution:-

We know that,

Force = mass × acceleration

$\implies \: f \: = 10 \times 3 \times {10}^{6} \\ \\ \implies \: f = 300 \times {10}^{5} \\ \\ \because \: 1 \: newton \: = {10}^{5} \: dyne \\ \\ \implies \: f = 300 \: newton$