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

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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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Discussion

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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