What is the force that the car exerts on the driver?

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SUMMARY

The discussion centers on calculating the force exerted by a car on the driver during a collision. A car traveling at 150 mi/hr strikes a wall and rebounds at 30 mi/hr over a contact duration of 0.1 seconds. Using Newton's second law, the average force can be determined by calculating the change in momentum over the time of contact. The specific formula to apply is force = change in momentum / time.

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  • Understanding of Newton's second law of motion
  • Knowledge of momentum and its calculation
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  • Basic algebra for solving equations
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A car traveling at 150 mi/hr strikes a wall and bounces backwards at 30 mi/hr. If the car is in contact with the wall for 0.1 seconds, what is the force that the car exerts on the driver?
 
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Hi smh745! :smile:
smh745 said:
A car traveling at 150 mi/hr strikes a wall and bounces backwards at 30 mi/hr. If the car is in contact with the wall for 0.1 seconds, what is the force that the car exerts on the driver?

(i think it means average force)

Hint: use the full version of good ol' Newton's second law … force = rate of change of momentum :wink:
 

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