Question

Ball 1, with a mass of 140 g and traveling at 14 m/s, collides head on with ball 2, which has 'a mass of 350 g and is initially at rest.

Answer 1

Answer: In = 6 ml touards left) & Ve = 8 m/s (Tourses, fonal valuab Initially rest o U = U/ 350g 1409 V2 V alker Collin By Conservation of monestun m, u + m₂ muitm202 140v, + 350 V₂ 140 X14 = 1960 © 14ov, +350v2 14 V1 + 35V2 196 Comel e=1 Collisus is perotectly Elantic So Coofficeed of restitution NI-V2 V12 U21 -1 = U2-ui Ni-V2= (2-0) = =O-14 oly VI-V2 i 140-1412 = -196 0-®- 35V2 +14 V2 = 196 + 196 4952 -392 i V₂ = 8 m/ .: 148, = ~196+14x8 = -84 V=-6 m/s are indicate motes toucods left afper collie)

Care 2 Gollisen is Perfectly colasta Coettures of restitution, e=0 Viz Ni-V₂-0 202) 4 v=V2 Put ① in 1 14 XV + 55 X V, 2196 49vi 196 4 miss the wfm, = Vana = 4 m/s - Vi = V₂ 4 m/s (moves trods gut