Question

A 20 kg gun fires a bullet of mass 20 g with a
velocity of 400 m/s. The action on the
shoulder of the person per second by the gun
is:
please guys tell me it's urgent​

Answer 1

Explanation:

Here, Mass of machine gun , M = 20 kg <br> mass of each bullet , m = 35 kg = 0.035 kg <br> velocity of bullet

<br> Number of bullets/sec (n)

<br> Force required = rate of change of linear momentum of bullets

.

Answer 2

Answer:

mu+MU=mv+MV

0=20*v+.02*400

0/20=v+8

0-8=v

v=-8m/s²