Question

of mass 1.00 kg moves East at 5.00 mts collides with another ball, of mass 2.00 kg, moving Ms. After the collision, the 2.00 ke mass moves at a velocity of 4.00 m/s East. What is the the other ball? Does this collision conserve mechanical energy (and explain why?

Answer 1

Applying conservation of linear momentum. my ut m2 42 = mile, a mara (9 kg) +(5^45) + 2 kg)*(307/s) = Akg) , +(2kg)* (4/5) Yi/= 1514 . 5+ 6-8 = 3 m/s k I final velocity of other ball Initial Mechanical Energy E; = 1 m, 4,2+1 m2 U2² +PE Ei = { 1(5)2 +4210)2 = 21.5J Final Mechanical Emergy. Ef = 1 mi 292 +1 m2 22² APEC Ef = { 1 (3) +4 2 ? = 20.5 J Ef & Ei Hence, Mechanical energy is not conserved.