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

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The discussion revolves around a physics problem involving a collision between two cars at an intersection. Car A, weighing 2000 kg, and car B, weighing 1500 kg, collide and move together at an angle of 65 degrees south of east. Participants emphasize using the conservation of momentum to calculate the post-collision speed and the initial speed of car A. The conversation highlights the importance of setting up the momentum equations correctly to solve for the unknowns. The focus remains on applying physics principles to derive the necessary speeds post-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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