88.0 kg sprinter starts a race with an acceleration of 1.76 m/s2. If the sprinter accelerates at that rate for 30 m and then maintains that velocity for the remainder of the 100 m dash, what will be his time (in s) for the race?
88.0 kg sprinter starts a race with an acceleration of 1.76 m/s2. If the sprinter accelerates at that rate for 30 m and then maintains that velocity for the remainder of the 100 m dash, what will be his time (in s) for the race?
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
Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 58P
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1. An 88.0 kg sprinter starts a race with an acceleration of 1.76 m/s2. If the sprinter accelerates at that rate for 30 m and then maintains that velocity for the remainder of the 100 m dash, what will be his time (in s) for the race?
________________ s
2. You work at a garden store for the summer. You lift a bag of fertilizer with a force of 110 N, and it moves upward with an acceleration of 0.732 m/s2.
(a)What is the mass (in kg) of the fertilizer bag?
____________ kg
(b)How much (in N) does the fertilizer bag weigh?
__________ N
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