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C Secure https://session.masteringphysics.com/myct/itemView?assignmentProblemID-86904140 hw Problem 8.29 pravicus 7 of 15 next Problem 8.29 Part A Find the magnitude of the final velocity of first gider if the collision is elastic A 0.400 kg glider is moving to the right on a frictionless horizontal air track with a speed of 0.900 m/s when it makes a head-on collision with a stationary 0.150 kg glider O? Submit My Answers Give Up Part B Find the direction of the final velocity of first glider if the collision is elastic to the right to the lett Submit My Answers Give Correct Part C Find the magnitude of the final velocity of second glider if the collision is elastic. mys

Explanation / Answer

(A) for elastic collision,

velocity of approach = velocity of separation

0.90 = v1 + v2

v2 = 0.90 - v1

Applying momentum conservation,

0.40 x 0.90 = - 0.4 v1 + 0.150 v2

0.36 = - 0.4 v1 + 0.135 - 0.150 v1

v1 = - .409 m/s

Speed = 0.409 m/s

(b) to the right

(C) v2 = 0.90 + 0.409 = 1.31 m/s

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