PHYSICS HELP?
2019-03-04 10:37 pm
Two football players collide head-on in midair while trying to catch a thrown football. The first player is 95.0 kg and has an initial velocity of 6.00 m/s, while the second player is 115 kg and has an initial velocity of –3.50 m/s. What is their velocity just after impact if they cling together?
回答 (1)
2019-03-04 10:47 pm
Conservation of momentum:
m₁u₁ + m₂u₂ = (m₁ + m₂)v
95.0 × 6.00 + 115 × (-3.50) = (95.0 + 115)v
210v = 167.5
Final velocity, v = 167.5/210 m/s = 0.798 m/s
m₁u₁ + m₂u₂ = (m₁ + m₂)v
95.0 × 6.00 + 115 × (-3.50) = (95.0 + 115)v
210v = 167.5
Final velocity, v = 167.5/210 m/s = 0.798 m/s
收錄日期: 2021-05-01 22:32:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20190304143755AAEPb1s