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Physics help? *highschool level?
Any help would be appreciated!
During a head on collision a passenger in the front seat of a car accelerates from 13.3 m/s to rest in .1 sec.
1. The driver has a mass of 80.0 kg, what force is exerted on the driver by the seat belt to bring the driver to stop?
(if it helps I already calculated acceleration to be 133 m/s^2)
2. The driver of the car holds out his arm to keep a 25kg (who is not wearing a seatbelt) from smashing into the dashboard. What force must the driver exert on the child?
1 Answer
- RohnLv 71 decade agoFavorite Answer
1)
f = ma
m = 80
a = acceleration = velocity / time = 13.3 / 0.1 = 133,/s^2
f (Newton N) = 80 X 133 = 10640 N
2)
F = 25 X 133 = 3325N
Rohn
