College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Chapter 2, Problem 17PE
Professional Application Dr. John Paul Stapp was U.S. Air Force officer who studied the effects of extreme deceleration on the human body. On December 10, 1954, Stapp rode a rocket sled, accelerating from rest to a top speed of 282 m/s (1015 km/h) in 5.00 s, and was brought jarringly back to rest in only 1.40 s! Calculate his (a) acceleration and (b) deceleration. Express each in multiples of g (9.80 m/s2) by taking its ratio to the acceleration of gravity.
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Dr. John Paul Stapp was U.S. Air Force officer who studiedthe effects of extreme deceleration on the human body. OnDecember 10, 1954, Stapp rode a rocket sled, acceleratingfrom rest to a top speed of 282 m/s (1015 km/h) in 5.00 s, andwas brought jarringly back to rest in only 1.40 s! Calculate his(a) acceleration and (b) deceleration. Express each inmultiples of g (9.80 m/s2) by taking its ratio to theacceleration of gravity.
As a technical engineer in the army, you are part of a team in charge of testing and commissioning a new tankrecently purchased by the artillery.Field testing has revealed the following information:1) The tank moves from rest to a speed of 70 ??/ℎ? in 10 seconds.2) Using the breaking system, the tank is brought to a complete stop from a speed of 70 ??/ℎ? in 5 seconds.You are required to address all the questions below providing all calculations, graphs, and explanations asappropriate to back your answers
The tank is to be placed on a hill that is 1 km high above the ground. The enemy’s base is located at a horizontaldistance of 10 km away and it is in a valley 0.5 km below the ground. Air resistance is neglected. Gravitationalacceleration is constant and equal to 9.8?/?2 downwards.a) If the bomb is to be fired perfectly horizontally, what should the launching speed of the bomb be in order tohit the target?b) What is the duration it would take the bomb to hit the target?c) Find x(t) and…
Chapter 2 Solutions
College Physics
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