Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
A machine gun fires 25 g bullets at the rate of 600 bullets per minute with a speed of 200 m/s. Calculate the force required to keep the gun in position.
 one year ago
 one year ago
A machine gun fires 25 g bullets at the rate of 600 bullets per minute with a speed of 200 m/s. Calculate the force required to keep the gun in position.
 one year ago
 one year ago

This Question is Closed

Yahoo!Best ResponseYou've already chosen the best response.1
600 bullets per minute = 600/60 = 10 bullets per second F = n * m * v = 10 * 200 * 25 * 10^3 = 2N
 one year ago

pratu043Best ResponseYou've already chosen the best response.0
But force is rate of change of momentum right?
 one year ago

MikaelBest ResponseYou've already chosen the best response.0
He gave you in fact Change of momentum/ per 1 sec
 one year ago

pratu043Best ResponseYou've already chosen the best response.0
I didn't get you @Mikael.
 one year ago

MikaelBest ResponseYou've already chosen the best response.0
See he calculated for U how much Momentum is given to ALL the bullets flyingout in the period of 1 second . IT IS the change in momentum of the gun too  with a minus sign of course
 one year ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.0
dw:1346144826007:dw
 one year ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.0
impulse is the variation of momentum
 one year ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.0
think in one bullet
 one year ago

RohangrrBest ResponseYou've already chosen the best response.0
\[ ♬ \ Jack \ of \ Oz \ ♬ \ [your \ turn] \]
 one year ago

TheProfBest ResponseYou've already chosen the best response.0
If the slowest rate of acceleration of a bullet is 0.1 seconds, then 0.025 x (200/0.1) [F = ma] = 50 N. So that would be the force from each fired bullet. We get the 0.1 second as the gun fires 10 rounds per second.
 one year ago

ghaziBest ResponseYou've already chosen the best response.0
force exerted by each bullet is impulsive therefore...force exerted by each bullet is 5 N that is the force which should be maintained to keep gun stationary
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.