How Do I Calculate Acceleration for a Skidding Car?

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SUMMARY

The discussion focuses on calculating the average acceleration of a skidding car moving at 72 km/h, which skids at a 30° angle and comes to a stop in 4.1 seconds. To determine the average acceleration in meters per second squared (m/s²), users are advised to utilize standard constant acceleration equations. The acceleration should be resolved into two components: one along the x-axis, representing the original motion, and the other along the y-axis, indicating the direction of the skid.

PREREQUISITES
  • Understanding of kinematics and constant acceleration equations
  • Knowledge of vector resolution in physics
  • Familiarity with unit conversion from km/h to m/s
  • Basic trigonometry, specifically sine and cosine functions
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  • Learn how to convert speeds from kilometers per hour to meters per second
  • Study the equations of motion for constant acceleration
  • Explore vector decomposition techniques in physics
  • Practice problems involving skidding and friction on inclined surfaces
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Students studying physics, automotive engineers, and anyone interested in understanding vehicle dynamics and skidding behavior.

l2udolph
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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.
 
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hi l2udolph! :wink:

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 :smile:​
 

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