A 150kg cart moving at 13m/s east collided with a 420kg wagon

  • Thread starter lcp1992
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  • #1
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Homework Statement


A 150kg cart moving at 13m/s east collided with a 420kg wagon moving at 5m/s east.The cart rebounded westward with a speed of 3m/s. What was the speed of the wagon after the collision?


Homework Equations



m1v1+m2v2=m'1v'1+m'2v'2


The Attempt at a Solution


I solved the problem with this formula but i got 8.57m/s as the answer but the correct answer should be 11m/s.
 

Answers and Replies

  • #3
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thanks!!
 

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