How many bullets can he fire per second at the most?, Physics

Assignment Help:

A machine gun fires a bullet of mass 40 g with a velocity 1200 m/s  The man holding it, can exert .  a maximum force of 144 N on the gun. How many bullets can he fire per second at the most?
 
Solution)  According to newtons 2nd law..... F=m(v-u)/t

144=0.04*n*1200/1           (per second...so t=1s)

n=3 bullets / sec


Related Discussions:- How many bullets can he fire per second at the most?

Horizontal distance of the point, Cannon of mass 5m (having a shell of mass...

Cannon of mass 5m (having a shell of mass m) is at rest on a smooth horizontal ground fires the shell with its barrel at an angle A with the horizontal at a velocity u relative to

Grating, plane transmission grating

plane transmission grating

Forces, like parallel forsces

like parallel forsces

Gravity, Can anyone give me a clear picture of GRAVITY?How does it works an...

Can anyone give me a clear picture of GRAVITY?How does it works and and where does it pulls everthing?

Explain phenomena of pendulum that suspended by railroad car, A pendulum wh...

A pendulum which is suspended from the ceiling of a railroad car is observed to hang at an angle of 10 degrees to the right of vertical.  Which of the following answers could expla

Explain the concept of net force, Muturi is rearranging some furniture. ...

Muturi is rearranging some furniture. He pushes the dresser with a force of 143 N,and there is opposing frictional force of 112 N. What is the net force ?

Zener diode, its characteristic and working

its characteristic and working

Upthrust, Does upthrust change in different liquids (examples please)

Does upthrust change in different liquids (examples please)

3/12/2013 2:47:18 AM

He force exerted by machine gun on man''''s hand in firing a bullet = change in momentum per second on a bullet or rate of change of momentum =(40/1000*)1200= 48 N .
The force exerted by man on machine gun = 144 N
Therefore, number of bullets fired =  3

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd