Recent content by lousymusicmaker

Thanks for your help. Now I can go back and explain them to my friend and make her argue for the other two.

OK nvm, that's the same thing you had just the mass in the final one is 3kg.

Shouldn't it be something like. p = m1(mass of object 1)v1(velocity of object 1) + m2v2 which would be p = 2(1) - 1(1) = 1 Then take p = mv, 1 = 3v, v = 1/3 Unless you interpret that as they are approaching each other at 1 m/s. which would give you 1/6 m/s.

Ok, that makes sense. Misread that. EACH engine has 50000N of force.

I think your getting into to much detail. It's an intro course. I think he just wants to know if 50,000N force is applied to a 100,000kg object, how fast will it accelerate?

That makes sense. It's been awhile since I had physics class.

OOPs didnt read the sticky. Sorry. Perhaps an admin can move it?

Here's some questions from a friends homework that we submitted online. I think the answers that the professor marked are wrong. If they are right please explain it to me. 1) A golf ball moving forward with 1 unit of momentum strikes and bounces backward off a heavy bowling ball that is...