How Do I Calculate Acceleration for a Skidding Car?

[l2udolph]

Hi, can you please help me by guiding me through how to set this problem up so I know how to solve it? Thanks!

Attempting to stop on a slippery road, a car moving at 72km/h skids at a 30∘ to its initial motion, stopping in 4.1s. Determine the average acceleration in m/s2, in coordinates with the x-axis in the direction of the original motion and the y-axis toward the side to which the car skids.

 

[tiny-tim]

hi l2udolph!

first find the average acceleration, then split it into the two components

show us what you get …

start with one of the standard constant acceleration equations ​