# Bye Brilliant

Will meet you after my 12th exams ------>14/03/14

Departing with a simple question

I have two identical pistols. I decided to do a simple experiment with it.

i reached the top of my building loaded one pistol with a bullet of mass "m" and loaded the other bullet with mass "7.5m" pointed both the gun towards the ground (bringing both the guns to the same level) and pulled the triggers at the same time

WHICH OF THE BULLET WILL REACH THE GROUND FIRST?

1.BULLET A (mass-m)

2.BULLET B(mass-7.5m)

3.Both of them because gravity acts equally on them

4.Information is not sufficient to give the answer

After answering think about what will happen if both are shot horizontally from the top of the building??

Note by Anirudha Nayak
6 years, 8 months ago

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Okay...

- 6 years, 8 months ago

- 6 years, 8 months ago

Oh, when I commented, he hadn't posted any question, it just said "will meet you after 12th exam".

- 6 years, 8 months ago

as many are giving wrong answer

Welcome to non intuitive physics

- 6 years, 8 months ago

1. The bullet with mass m hits the ground first.

- 6 years, 8 months ago

1. The one that's heavier takes more work to go the same speed as the one that's lighter ($F=ma$). Therefore, the gun loaded with the smaller bullet will travel much faster and hit the ground first.

- 6 years, 8 months ago

4

- 6 years, 8 months ago

wrong

- 6 years, 8 months ago

Ignoring air resistance, option 1 is correct because the lighter bullet will get some initial acceleration from the pistol. Then only gravity does the rest. But the heavier bullet will get a lesser acceleration because of more inertia.

With air resistance and all sort of other things, option 2 is correct. Because it has more inertia, it falls first. If there's wind, the lighter bullet gets carried away and again the heavy bullet touches the ground first.

- 6 years, 7 months ago

3.

- 6 years, 8 months ago

wrong

- 6 years, 8 months ago