No it isnt because you get <span>208519.454545</span>
This is a physics problem.
The law is that the momentum is preserved: total momentum before collsion = total momentum after collision
Momentum before collision = 80 kg.m/s - 100 kg.m/s = -20 kg.m/s
Then answer is b. - 20 kg.m/s
4. 119*4 = $476 total dollars for four nights
5.
Geometry is another subject in which symmetry is important. <span />
I think your right,It would be 81.6.
Hope this helps. :D
