Calculating Post-Collision Speed and Initial Speed of Two Cars at Intersection

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SUMMARY

The discussion focuses on calculating the post-collision speed and the initial speed of two cars involved in a collision at an intersection. Car A, with a mass of 2000 kg, travels east, while Car B, with a mass of 1500 kg, moves south at 15 m/s. After the collision, both cars move together at an angle of 65 degrees south of east. The conservation of momentum is the primary principle applied to determine the speeds before and after the collision.

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Homework Statement


Two cars collide at an intersection. car A with a mass of 2000 kg is going from west to east while car B of mass 1500 kg is going from north to south at 15 m/s. As a result of collision the two cas move together as one after. The cars now move at an angle 65 degrees south of east from point of impact.
How fast are the cars moving after collision?
How fast was car A going just before the collision?


Homework Equations




conservation of momemtum

The Attempt at a Solution


P intail= P final
 
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Hi physicsjessic! :wink:
physicsjessic said:

Homework Equations



conservation of momemtum

Yes, that's the right technique …

what do you get? :smile:​
 

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