How Is Collision Speed Calculated in a Supermarket Parking Lot Incident?

AI Thread Summary
In a supermarket parking lot incident, a car pulling out at 0.8 m/s collides with an oncoming car traveling at 1.2 m/s, with a 24-degree angle between their velocities. To calculate the collision speed, the relative velocities are treated as vectors, forming a triangle. The lengths of the two sides represent the speeds of the cars, and the angle between them is used to find the resultant speed. The solution involves applying vector addition principles. This method effectively determines the collision speed in such scenarios.
melmel7880
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Homework Statement


On a supermarket parking lot, a car is pulling out and bumping into an oncoming car. The car pulls out with 0.8 m/s, while the oncoming car has a speed of 1.2 m/s. The angle between the velocities is 24 degrees, as indicated in the figure. What is the collision speed?


Homework Equations





The Attempt at a Solution

 
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Welcome to PF!

Hi melmel7880! Welcome to PF! :wink:

Relative velocities are vectors, so use a vector triangle …

you are given the lengths of two sides, and the angle between, and you want the third length …

what do you get? :smile:​
 
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