Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

While driving down the road, if you hit the brakes suddenly, your body moves forward. Explain the reason for this.

share|improve this question
4  
Hi user1530249 - it helps if you ask your question as a question, not as a statement. Also, this is explained on many websites about motion. What other explanations did you look at, and what did you have trouble understanding about them? –  David Z Feb 14 '13 at 4:03

1 Answer 1

While your driving a car, you share a reference frame with it, meaning your velocities and accelerations are approximately equal. When you hit the breaks you no longer share a frame of reference as the car is decelerating with respect to the road. However your still moving forward until acted on by an external force i.e. your seatbelt.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.