College Physics: A Strategic Approach (4th Edition)
4th Edition
ISBN: 9780134609034
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Chapter 1, Problem 15CQ
A car is driving north at a steady speed. It makes a gradual 90° left turn without losing speed, then continues driving to the west. Draw a motion diagram, using the particle model, showing the car's velocity vectors as seen from a helicopter hovering over the highway.
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Chapter 1 Solutions
College Physics: A Strategic Approach (4th Edition)
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- The Lost Drone. You and your team are exploring the edge of an Antarctic mountain range and you send a drone ahead to help navigate. After takeoff you lose sight of the drone and, a few seconds later, the controls malfunction and the drone stops sending visual images and navigational information except for speed and directional data. Changing speeds erratically, the drone heads west until it makes a drastic turn at the 5-minute mark to -30° east of south. After nearly ten minutes, the speed drops to zero and the drone stops sending data. It has crashed. Using the speed/directional data, the team draws up the graph shown below. (a) How far is the drone from you? (b) In what direction must you go to retrieve it? Express your result as a geographical direction west of south. 24 (a) Number i (b) Number i Velocity v (m/s) 18 12 6 0 0 100 WEST Units Units 200 300 Time t (s) 3° East of South 400 west of south. 500 600arrow_forwardphysicsarrow_forwardA hiker walks 2.55 km south and then 2.75 km east, all in 4.00 hours. a. calculate magnitude (in km) and direction (in degrees south of east) of the hiker's displacement during the given time. what is the magnitude in km and direction in degrees south of east b. calculate the magnitude( in km/h) and direction (in degrees south of east) of the hiker's average velocity during the given time. what is the magnitude in km/h direction degrees south of east c. what was her average speed (in km/h) during the same time interval in km/h?arrow_forward
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