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(c7p50) A 1000- kg car collides with a 1300- kg car that was initially at rest...

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Physics

(c7p50) A 1000- kg car collides with a 1300- kg car that wasinitially at rest at the origin of an x-y coordinate system. Afterthe collision, the lighter car moves at 25.0 km/h in a direction of25 o with respect to the positive x axis. The heaviercar moves at 28 km/h at -50 o with respect to thepositive x axis.
What was the initial speed of the lighter car (in km/h)?

Also, What was the initial direction (as measuredcounterclockwise from the x-axis)?

Answer & Explanation Solved by verified expert
4.5 Ratings (622 Votes)
The key concept here is conservation of momentum Momentum is mass times velocity Note that as the 1300 kg car was initially at rest the total momentum must be equal to the momentum of the    See Answer
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