Posted by **mTaq14** on Thursday, March 19, 2009 at 1:24pm.

I need help with this problem because it is confusing me. I tried to anwer it, though, so can someone please correct me if I am wrong?

Suppose your mass is 45 kg and the mass of your little brother is 25 kg. You push your brother +100 N and an equal but opposite force of -100 N is returned to you. Use the formula F=m/a to compute acceleration.

The work:

a= -100 N/45 kg

a= (-100 kg* m/s2)/45= -2 m/s2

So your acceleration is -2 m/s2

a= 100 N /25 kg

a= (100 kg* m/s2)/25 kg= 4 m/s2

So your little brother's acceleration is 4 m/s2

Thanks!

## Answer this Question

## Related Questions

- Physical Science - I need some help. I have tried working this problem and can't...
- calculus - I've tried this problem about 20 times and a bunch of different ways ...
- Dr.Bob22 - Can you please verify the anwer I gave robb under his chemistry post ...
- chemistry - A radio station's channel, such as 100.7 FM or 92.3 FM, is actually ...
- Math-- Fractions-- I Desperately Need Help!! - I need help with this problem. ...
- Physical Science - I forgot to add this question into my other Physical Science ...
- Physical science - When you drop a 0.36 kg apple, Earth exerts a force on it ...
- Physical Science - Hello, In the following question can someone please tell me ...
- alegbra - I have tried to work these problem and seem to do it wrong.I need help...
- math 012 please help explain - can someone please help explain how to do this ...

More Related Questions