there are thre parts of this problem, could u pls show step by step (full rate w
ID: 2199166 • Letter: T
Question
there are thre parts of this problem, could u pls show step by step (full rate with a full answer :) ) part a A cart with mass 220 g moving on a frictionless linear air track at an initial speed of 1.7 m/s strikes a second cart of unknown mass at rest. The collision between the carts is elastic. After the collision, the first cart continues in its original direction at 1.04 m/s. (a) What is the mass of the second cart ( g )? part b) What is its (second cart) speed after impact?? part c) What is the speed of the two-cart center of mass? pls do since i'm struglling with physics :)Explanation / Answer
1] THis problem requires simultaneous conservation of momentum and energy. 2] Call the cars a and b .5MaVai^2 + .5MbVbi^2 = .5MaVaf^2 + .5MbVbf^2 Vbi was zero; I just put the second term there for completeness MaVai + MbVbi = MaVaf + MbVbf 3] You know Ma, Vai, and Vaf. Use the last equation first to find Vbf, then go to the first equation. 4] I can tell you that since the first cart did not reverse it is heavier than the second one. 5] The speed of the center of mass will not change
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