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Class 9-10, JEE & NEET
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A person driving a car suddenly applies the brakes on seeing a child on the road ahead. If he is not wearing a seat belt, he falls forward and hits his head against the steering wheel. Why?
When a person applies brakes suddenly, he tends to fall forward and hit his head against the steering wheel if he is not wearing the seat belt because his upper body
continues to be in a state of motion and in the same direction as that of the car which is due to inertia of motion.