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Title: A 30.0 kg object moving to the right at a velocity of 1.00 m/s collides with a 20.p kg object moving ... Post by: s.h_math on Nov 25, 2021 A 30.0 kg object moving to the right at a velocity of 1.00 m/s collides with a 20.p kg object moving to the left with a velocity of 5.00 m/s. If the 20.0 kg object continues to move to the left at a velocity of 1.25 m/s, what is the velocity of the 30.0 kg object.
Hi there this is my question, I always have trouble with putting the direction at the end and I'm unsure how to know the correct direction at the end. Thanks a lot! Title: A 30.0 kg object moving to the right at a velocity of 1.00 m/s collides with a 20.p kg object moving ... Post by: duddy on Nov 25, 2021 Content hidden
Title: A 30.0 kg object moving to the right at a velocity of 1.00 m/s collides with a 20.p kg object moving ... Post by: s.h_math on Nov 25, 2021 Could you show steps on how to solve for v1?
Title: A 30.0 kg object moving to the right at a velocity of 1.00 m/s collides with a 20.p kg object moving ... Post by: duddy on Nov 25, 2021 Sure,
30 - 100 = 30v - 25 -70 = 30v - 25 ..... now move the -25 over. -70 + 25 = 30v -45 = 30v ..... now divide both sides by 30. -45/30 = v -1.5 = v remember that we defined negative as going to the left, so the answer is 1.5 m/s to the left. Title: A 30.0 kg object moving to the right at a velocity of 1.00 m/s collides with a 20.p kg object moving ... Post by: s.h_math on Nov 25, 2021 Thanks a lot sir!
Also the way you wrote out the initial equation first, really helped me out! Title: A 30.0 kg object moving to the right at a velocity of 1.00 m/s collides with a 20.p kg object moving ... Post by: duddy on Nov 25, 2021 Yes, the entire premise is based on that idea. I will mark my answer as best answer.
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