I think I get what your saying. Subsystem1 with the boy, v snowball is 6.2 m/s but by the time it reaches the girl in subsystem2 it has a different velocity, one equal to the final velocty of the girl.
I just realized how do I solve the P_{final}=m_{boy}v_{final boy} + m_{snow ball}v_{final...
I don't understand this part..."but in the case of the girl,it will be the same with the girl's" Maybe I am reading it wrong but I just don't get it right now. If you could re-phrase it that would be aweosme. Thanks :smile:
Im having trouble with this problem...
A 35kg girl is standing near and to the left of a 43kg boy on a frictionless surface of a frozen pond. The boy tosses a .75kg snow ball to the girl with a horizontal speed of 6.2m/s. What are the velocities of the boy and girl immediately after the girl...
I pluged everything in and found the KEf=-0.01
I think its supposed to be 0, I just rounded wrong. But that can't be right, it has to have some KE before it hits the ground.
and thanks for the help everyone :smile:
I got the first part down but now I am having trouble with the basic stuff. I am failing the class right now b/c I know the concepts and the forumulas I just don't know how to work them in problems :frown:
With the W=(F cos 180) 1m How do I find the F? I know F=ma but I don't have the a...
Im having trouble with this problem. I know that KE=1/2mv^2 and the Wrok engergy theorm W=KFf-KEo but I am having trouble relating the figure to KE.
Two boxes are connected to each other as show. The system is released from rest and the 1.00 kg box falls 1.00 m. The surface of the table is...