Explanation Given: The distance covered by the object in the last second of its fall is 38 m . Formula used: Write the expression for the distance covered by the object in last second. x = v 0 + g 2 ( 2 t − 1 ) ........(1) Here, x is the distance covered in last second, v 0 is the initial velocity, g is the acceleration due to gravity and t is the time taken. Write the expression for the total height covered in t time. y = 1 2 g t 2 ........(2) Here, y is the total height from which the object falls. Calculation: Substitute 0 m / s for v 0 , 9.8 m / s 2 for g and 38 m for x in equation (1)

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ISBN: 9781429281843

Author: Tipler

Publisher: MAC HIGHER

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Chapter 2, Problem 74P

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The height from which the object has fallen.

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Chapter 2, Problem 73P

Chapter 2, Problem 75P

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The height from which the object has fallen.

Solution Summary: The author calculates the total height from which the object has fallen, which is 94m.

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