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?

Force, explain with the aid of a diagram what is meant by the moment of a f...

explain with the aid of a diagram what is meant by the moment of a force about point

Determine the velocity of ball down the hill, A child rolls a ball up a hil...

A child rolls a ball up a hill at 3.24 m/s. If the ball experiences an acceleration of 2.32 m/s 2 . How long will it take for the ball to have a velocity of 1.23 m/s down the

Explain nuclear reactor, Nuclear Reactor: During fission large amount o...

Nuclear Reactor: During fission large amount of energy is free in the form of heat. A system, which is used to get controlled amount of heat energy from nuclear fission is know

Heat loss in a cylindrical pipe, The project consists of a word processed (...

The project consists of a word processed (typed) report submitted by the project report due date. Late submissions are penalized 10% of the mark per day, including Saturdays and Su

Classification of resistors , Depending on the material of the resistance e...

Depending on the material of the resistance element, resistors are classified into linear resistors and non linear resistors. Majority of the resistors used in electronic circuits

Wave motion, What is the difference between vibration and waves?

What is the difference between vibration and waves?

Explain current and voltage relationship for two resistors, The current/vol...

The current/voltage relationship for two resistors A and B is as shown in Figure. Verify the value of the resistance of every resistor.

.fluid mechanics, when do we use projected area instead of actual area and ...

when do we use projected area instead of actual area and why

Inertia on a bicycle, Inertia on a bicycle Get your bicycle going and t...

Inertia on a bicycle Get your bicycle going and then apply the brakes rapidly. View the tendency of your body to stay in motion and pitch you over the handlebars. This is the r

Inelastic collision, INELASTIC COLLISION:  "The collision in which tota...

INELASTIC COLLISION:  "The collision in which total momentum is preserved but total K.E of system is not conserved is known as inelastic collision". It is to be noted that m

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