MasteringPhysics Mast Homework Problem 9.60- MC What is the speed of the first b

Question

MasteringPhysics Mast Homework Problem 9.60- MC What is the speed of the first ball after the collision? Problem 9.60-MC Express your answer using three significant figures. Hints One billiard ball is shot east at 5.50 m/s. A second, identical billiard ball is shot west at 3.00 m/s. The balls have a glancing collision (a non-head-on collision) that allows the second ball to deflect by 90 and end up going north at 5.74 m/s 6.26 m/s Submit My Answers Give Up Correct Part B If we were to draw the first ball's final velocity starting at the origin of a coordinate Hints The first quadrant. The second quadrant. The third quadrant. The fourth quadrant. Submit My Answers Give Up Correct Part C In what direction is the first ball moving after the collision? Express your answer using three significant figures. Use the standard angle. Hints

Explanation / Answer

Solving part C

As second ball goes in north direction

So first ball will go in a direction such that momentum is conserved.

Let the velocity of ball in south direction is vs and in east direction be ve

Conserving momentum we got

Vs=5.74 m/s

Ve=2.5 m/s

Direction=tan-1(5.74/2.5)=66.46 degree to south of east or 293 degree from east in counterclockwise direction

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