Sharlet999 Posts: 3, Reputation: 1 New Member #1 Jan 18, 2018, 01:41 AM
Physics Trouble
Ball A, with a mass of 10kg, is moving to the right at 20 m/s. Ball B is moving to the left at 20 m/s. Upon collision, Ball B comes to a standstill, and Ball A moves to the left at twice its original speed. What is the mass of Ball B?

 Curlyben Posts: 18,478, Reputation: 1857 Admin & Wine Expert #2 Jan 18, 2018, 01:46 AM
What do YOU think ?
While we're happy to help, we wont do all the work for you.
 Sharlet999 Posts: 3, Reputation: 1 New Member #3 Jan 18, 2018, 01:49 AM
I truly don't know. The answer I originally came up with was wrong but it doesn't tell me why. I want to better understand why I got it wrong.
 Curlyben Posts: 18,478, Reputation: 1857 Admin & Wine Expert #4 Jan 18, 2018, 02:15 AM
Show us what you have done and we should be able to guide you.
 Sharlet999 Posts: 3, Reputation: 1 New Member #5 Jan 18, 2018, 02:21 AM
I just realized what I got wrong! Sorry for the trouble.

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