If n bullets each of mass m are fired with a velocity v per second from a machine gun, the force required to hold the gun in position is

Question

If n bullets each of mass m are fired with a velocity v per second from a machine gun, the force required to hold the gun in position is (A) (n + 1) mv (B) (mv/n2) (C) (mv/n) (D) n2 mv

Tardigrade Admin · Accepted Answer

Given, Mass of bullet =m, Velocity of bullet =V Number of bullet =n We know that, force required to hold the gun in position i.e. F=(Δ P/Δ t)=n(m v)=m n v

Q. If n bullets each of mass m are fired with a velocity v per second from a machine gun, the force required to hold the gun in position is

$(n + 1) m v$

$\frac{m v}{n ^{2}}$

$\frac{m v}{n}$

$n^{2} m v$

mnv

Given, Mass of bullet $= m$ ,
Velocity of bullet $= V$
Number of bullet $= n$
We know that, force required to hold the gun in position i.e.
$F = \frac{Δ P}{Δ t} = n (m v) = mn v$

Q. If n bullets each of mass m are fired with a velocity v per second from a machine gun, the force required to hold the gun in position is

(n+1)mv

n2mv​

nmv​

n2mv

mnv

Given, Mass of bullet =m, Velocity of bullet =V Number of bullet =n We know that, force required to hold the gun in position i.e. F=ΔtΔP​=n(mv)=mnv

$(n + 1) m v$

$\frac{m v}{n ^{2}}$

$\frac{m v}{n}$

$n^{2} m v$

Given, Mass of bullet $= m$ ,
Velocity of bullet $= V$
Number of bullet $= n$
We know that, force required to hold the gun in position i.e.
$F = \frac{Δ P}{Δ t} = n (m v) = mn v$