Guys,
This question was in our physics UT. Some of the students are saying that the answer of this is light and some of the students like me are saying the answer is Heavier. The question is...
Two identical bullets are fired, one from heavy rifle and other with lighter rifle. Which rifle will hurt the shoulder? and Why
This same question was given in the UT. Please help me out...
Answers
Answered by
1
Both rifles should hurt the shoulder equally because by the law of conservation of momentum, the lighter gun will move with more speed than heavier but the momentum will remain same, so both heavier and lighter rifles should hurt equally.
YM007:
You saw this answer from another website
Answered by
0
heya !!!
>IF THE MASSES OF BOTH BULLETS ARE SAME ,THEN THEY WILL HAVE SAME VELOCITIES.
>IF WE FIND OUT THE MOMENTUM OF THOSE TWO BULLETS THEN IT WILL BE EQUAL TO mu (mass * velocity) OF BOTH THE BULLETS.
>THUS ,MOMENTUM OF BOTH THE GUNS OR BULLETS ARE SAME.
>HENCE, BOTH WILL EQUALLY HURT THE SHOULDER .
*(IN CASE YOU WANT TO GIVE ONLY ONE ANSWER, YOU CAN WRITE HEAVIER BECAUSE MOMENTUM OF HEAVIER BULLET WILL BE SLIGHTLY GREATER THAN LIGHTER BULLET BUT IT IS IGNORANT)*
◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆
HOPE IT HELPS U !!!☺☺
>IF THE MASSES OF BOTH BULLETS ARE SAME ,THEN THEY WILL HAVE SAME VELOCITIES.
>IF WE FIND OUT THE MOMENTUM OF THOSE TWO BULLETS THEN IT WILL BE EQUAL TO mu (mass * velocity) OF BOTH THE BULLETS.
>THUS ,MOMENTUM OF BOTH THE GUNS OR BULLETS ARE SAME.
>HENCE, BOTH WILL EQUALLY HURT THE SHOULDER .
*(IN CASE YOU WANT TO GIVE ONLY ONE ANSWER, YOU CAN WRITE HEAVIER BECAUSE MOMENTUM OF HEAVIER BULLET WILL BE SLIGHTLY GREATER THAN LIGHTER BULLET BUT IT IS IGNORANT)*
◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆
HOPE IT HELPS U !!!☺☺
I answered the same in the UT, but our sir gave me 0 marks :v. According to him the answer will be lighter because it will gain more acceleration.
i m really very sorry
i thought its heavier
but thnx for telling me the right answer
:)
Still the impact is due to the momentum which is same for both... Please ask your sir to explain in detail..
mhm I went to sir mannyyy times and he said he will give me marks with the answer "Heavier" he said that he gave that ques. by mistake, if we look the ques. with different cases, we will get different cases... :)
ooooo
:)
so ans is heavier!!☺
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