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82. A person 200 m from a store walks directly away from the store at a constant velocity of 2.5 m/s for 65 s. How far is the person from the store now?

82. A person 200 m from a store walks directly away from the store at a constant velocity of 2.5 m/s for 65 s. How far is the person from the store now?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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80. (A runner passes the 2,000 m mark of a race 380 s after starting. At what time (after starting) will the runner reach the 5,000 m mark if her speed remains constant? .87. (C tow mo doe Marker 2 88. Two Marker 1 (290 km) the s (125 km) at 2.2 passe maint 81. CA submarine must reach a marker 290 km from shore 9 hr after leaving port. At what time will the submarine pass a marker that is 125 km from shore? Assume constant-velocity motion. 82. A person 200 m from a store walks directly away from the store at a constant velocity of 2.5 m/s for 65 s. How far is the person from the store now? 0.0 1.0 83. An asteroid is 180,000 km away from the Moon on a collision course. How much time will it take before the asteroid is 10 km away if it is moving at a constant velocity of 36,000 m/s? You may neglect the effects of the Moon's gravity. 0.0 -1.0 84. A tennis ball is moving 30 m/s toward a player who swings a racquet at a velocity of 15 m/s toward the ball. What is the velocity of the ball relative to the racquet? 89. During wh graph not r versus time OCT 19 MacBook Air D00 20 F3 F2 F4 F5 F6 Velocity (m/s) Position (m)
Transcribed Image Text:80. (A runner passes the 2,000 m mark of a race 380 s after starting. At what time (after starting) will the runner reach the 5,000 m mark if her speed remains constant? .87. (C tow mo doe Marker 2 88. Two Marker 1 (290 km) the s (125 km) at 2.2 passe maint 81. CA submarine must reach a marker 290 km from shore 9 hr after leaving port. At what time will the submarine pass a marker that is 125 km from shore? Assume constant-velocity motion. 82. A person 200 m from a store walks directly away from the store at a constant velocity of 2.5 m/s for 65 s. How far is the person from the store now? 0.0 1.0 83. An asteroid is 180,000 km away from the Moon on a collision course. How much time will it take before the asteroid is 10 km away if it is moving at a constant velocity of 36,000 m/s? You may neglect the effects of the Moon's gravity. 0.0 -1.0 84. A tennis ball is moving 30 m/s toward a player who swings a racquet at a velocity of 15 m/s toward the ball. What is the velocity of the ball relative to the racquet? 89. During wh graph not r versus time OCT 19 MacBook Air D00 20 F3 F2 F4 F5 F6 Velocity (m/s) Position (m)
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