During the late 1940’s, Colonel John Paul Stapp was a pioneer in studying the effects of acceleration and deceleration on the human body. He made multiple runs strapped to a rocket sled that quickly accelerated him to high speeds along a straight track (see figure). His research led to improvements in restraining harnesses and seatbelts for pilots and automobile occupants. During his final run, he reached a maximum speed of 632 mph. When the sled’s braking system brought it to rest, Colonel Stapp experienced a deceleration of magnitude 46.2g, or 46.2 times the acceleration of gravity at the Earth’s surface. Although he survived, he did sustain injuries, such as a fractured wrist, broken ribs, and bleeding in his eyes. Calculate how long it took to bring the rocket sled to rest. Assume the deceleration was constant during the braking period

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Chapter1: Units, Trigonometry. And Vectors
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During the late 1940’s, Colonel John Paul Stapp was a pioneer in studying the effects of acceleration and deceleration on the human body. He made multiple runs strapped to a rocket sled that quickly accelerated him to high speeds along a straight track (see figure). His research led to improvements in restraining harnesses and seatbelts for pilots and automobile occupants. During his final run, he reached a maximum speed of 632 mph. When the sled’s braking system brought it to rest, Colonel Stapp experienced a deceleration of magnitude 46.2g, or 46.2 times the acceleration of gravity at the Earth’s surface. Although he survived, he did sustain injuries, such as a fractured wrist, broken ribs, and bleeding in his eyes. Calculate how long it took to bring the rocket sled to rest. Assume the deceleration was constant during the braking period

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