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Forces and Elasticity

Question

What is the deceleration of a car when travailing at 20 m/s and collides with a tree.

3 years ago

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Melvin Williamson


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You need the time taken for the car to stop to calculate the deceleration. Deceleration(or acceleration)=change in velocity/time taken. If the car hit a tree doing 20m/s and stopped in tim=0.4s then the deceleration =(20-0)/0.4=50m/s2

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