Two balls of equal mass m undergo a collision. One ball is initially stationary. After the collision, the velocities of the balls make angles of 33° and 43° relative to the original direction of motion of the moving ball. If initial speed of moving ball is 5.4 m/s find the final speed.(adsbygoogle = window.adsbygoogle || []).push({});

What ive done:

In x axis:

M1V1+ M2V2= M1V1’+ M2V2’

M(5.4)+M(0)=M(V1’Cos33)+M(V2’Cos46)

5.4M= M( V1’Cos33+ V2’Cos46)

5.4= V1’Cos33+ V2’Cos46

In the y axis:

0= M1V1’+ M2V2’

0=M(V1’Sin33)-M(V2’Sin46)

(Dividing both sides by M)

0=( V1’Sin 33- V2’Sin46)

0= V1’Sin33- V2’Sin46

i dont know what do do after this!!! please help!!!

HERES IMAGE OF PROBLEM WITH DIAGRAM:

http://i.imgur.com/NKSeA.jpg

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# Homework Help: Momentum of two balls collision question

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