A car is crashed into a tree at the speed of 144 km/h. It took the car 4 seconds to stop. Assume that the car withstood the collision without substantial damage, and the driver received no more than superficial bruises to the surface of her body. (a) Draw a diagram that represent the collision and label all vector quantities. Make sure you pick axes and indicate directionality with signs and unit vectors. (b) Assuming that the acceleration was uniform during the collision, calculate the acceleration and indicate its direction on your diagram. (c) If (at best) a person can withstand 9g acceleration (9 × 9.8m/s ^2 = 88.2 m/s^2 ) only for a few seconds, is the driver of the car survived the crash?
A car is crashed into a tree at the speed of 144 km/h. It took the car 4 seconds to stop. Assume that the car withstood the collision without substantial damage, and the driver received no more than superficial bruises to the surface of her body. (a) Draw a diagram that represent the collision and label all vector quantities. Make sure you pick axes and indicate directionality with signs and unit vectors. (b) Assuming that the acceleration was uniform during the collision, calculate the acceleration and indicate its direction on your diagram. (c) If (at best) a person can withstand 9g acceleration (9 × 9.8m/s ^2 = 88.2 m/s^2 ) only for a few seconds, is the driver of the car survived the crash?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 9OQ: As an object moves along the x axis, many measurements are made of its position, enough to generate...
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A car is crashed into a tree at the speed of 144 km/h. It took the car 4 seconds to stop. Assume that the car withstood the collision without substantial damage, and the driver received no more than superficial bruises to the surface of her body.
(a) Draw a diagram that represent the collision and label all vector quantities. Make sure you pick axes and indicate directionality with signs and unit vectors.
(b) Assuming that the acceleration was uniform during the collision, calculate the acceleration and indicate its direction on your diagram.
(c) If (at best) a person can withstand 9g acceleration (9 × 9.8m/s ^2 = 88.2 m/s^2 ) only for a few seconds, is the driver of the car survived the crash?
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