MasteringPhysucs CHs HW-Mcssht Edge 87486567 CH.O8 HW Collisions in One Dimensio

Question

MasteringPhysucs CHs HW-Mcssht Edge 87486567 CH.O8 HW Collisions in One Dimension Collisions in One Dimension On a frictionless horizontal air table, puck A (with mass 0 248 kg) is moving toward puck B (wh mass 0.375 kg ), which is initially at rest After the collision, puck A has velocity 0.115 m/s to the left and puck B has velocity 0 654 m/s to the right m/s My Answers Give Up Part B Calculate K.the changeinthe total kiretc energy ofthn tystem that occurs dingthe clin A2 Ak Provide Eeedback 3

Explanation / Answer

From momentum conservation to the right:

Initial momentum = mv = .248*v

Final momentum = .375 * .654

So , initial velocity of A = ( .375 * .654 )/.248 = .989 m/sec to the right

Difference in Kinetic energy = (.5 x .248 x .115^2 + .5 x .375 x .654^2)-(.5 x .248 x .989^2) = 0.03 ~ 0

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