Physics for Scientists and Engineers: A Strategic Approach 5th Edition · Newton's Theory of Gravity · Problem 46
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Randall D. Knight — Newton's Theory of Gravity: Problem 46
A rogue band of colonists on the moon declares war and prepares to use a catapult to launch large boulders at the earth. Assume that the boulders are launched from the point on the moon nearest the earth. For this problem you can ignore the rotation of the two bodies and the orbiting of the moon. a. What is the minimum speed with which a boulder must be launched to reach the earth? Hint: The minimum speed is not the escape speed. You need to analyze a three-body system. b. Ignoring air resistance, what is the impact speed on earth of a boulder launched at this minimum speed?
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주어진 조건: . a
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Physics for Scientists and Engineers: A Strategic Approach · 5th Edition
저자: Randall D. Knight
출판사: Pearson
단원: Newton's Theory of Gravity