impulse = change in momentum = .022*72 for each bullet
total change in bullet momentum + total change in rhino momentum = 0
so
number of bullets*.022*72 = m * .84
Wildlife biologists fire 22g rubber bullets to stop a rhinoceros charging at 0.84 m/s. The bullets strike the rhino and drop vertically to the ground. The biologists' gun fires 15 bullets each second, at 72 m/s, and it takes 36 s to stop the rhino. What impulse does each bullet deliver? as well as What's the rhino's mass? Neglect forces between rhino and ground.
4 answers
For part b, divide the speed of the rhino by the time it takes to stop it which would give you the acceleration.
Answer to 1 is it doesn’t matter, to question 2 also it doesn’t matter. You will be dead, 22g rubber bullet is so light won’t even have scratch and bounce off. This question is not responsible, specially for people who don’t know or kids. Anything short of a .450 even a 404 with at least 350 grain at least full metal jacketed with multiple shot just isn’t going to stop it before it crush you. If you miss the brain and just hit body with double barrel 450 I say good luck and may hope you live. Recommend 500+ gr for shotgun and at least a 400 gr 404. Usually I would recommend more the .416 to be safe. Personally I would say have a 458 Lott if you want bullet rifle. Lesser 458win work too though prefer the first. 460 Wby would do great work too.
Could also with extreme luck have a pet leopard to protect you as I have heard a story of it when younger of a female researcher/ranger. It was a rhino charge though and hippo is a case above rhino power, still could work.
Even within the rubber bullet context, it is a flawed question, bullet bc, velocity, case capacity and ftb of energy most be accounted not to forget
Could also with extreme luck have a pet leopard to protect you as I have heard a story of it when younger of a female researcher/ranger. It was a rhino charge though and hippo is a case above rhino power, still could work.
Even within the rubber bullet context, it is a flawed question, bullet bc, velocity, case capacity and ftb of energy most be accounted not to forget
That trajectory flatness need to be accounted for. That is already forgo the smaller variability already which is of limited consequence but just for the information
Must not most in previous phrase
Must not most in previous phrase