- #1
simpreza2
- 8
- 0
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 catches the snow ball?
I don't really know where to start but I found a similar problem in my notes and it looks like this...
An astronaut(90kg) throws a wrench(5kg). Find the final velocity of antronaut. And we used this equation...
[tex]P_{final}=m_{astro}v_{final astro} + m_{wrench}v_{final wrench}[/tex]
I am thinking I need to split the problem into two pieces. The ball leaving the boys hand and then the girl catching the ball. Would I use the same formula as above for this problem like so...
[tex]P_{final}=m_{boy}v_{final boy} + m_{snow ball}v_{final snow ball}[/tex]
[tex]P_{final}=m_{girl}v_{final girl} + m_{snow ball}v_{final snow ball}[/tex]
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 catches the snow ball?
I don't really know where to start but I found a similar problem in my notes and it looks like this...
An astronaut(90kg) throws a wrench(5kg). Find the final velocity of antronaut. And we used this equation...
[tex]P_{final}=m_{astro}v_{final astro} + m_{wrench}v_{final wrench}[/tex]
I am thinking I need to split the problem into two pieces. The ball leaving the boys hand and then the girl catching the ball. Would I use the same formula as above for this problem like so...
[tex]P_{final}=m_{boy}v_{final boy} + m_{snow ball}v_{final snow ball}[/tex]
[tex]P_{final}=m_{girl}v_{final girl} + m_{snow ball}v_{final snow ball}[/tex]