Question
What should be the spring constant k of a spring designed to bring a 1,466.39 kg...
What should be the spring constant k of a spring designed to bring a 1,466.39 kg car to rest from a speed of 93.00 km/hr so that the occupants undergo a maximum acceleration of 4g?
Homework Answers
Answer #1
Given,
Mass of car is 
Intial speed is 
Acceleration is 
As the car comes to rest, final speed is 
Let the distance moved by spring before the car comes to rest be
then,
The spring force is
where k is the spring constant
we can write this as
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