College Physics
12th Edition
ISBN: 9781259587719
Author: Hecht, Eugene
Publisher: Mcgraw Hill Education,
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Chapter 1, Problem 46SP
A boat, propelled so as to travel with a speed of 0.50 m/s in still water, moves directly across a river that is 60 m wide. The river flows with a speed of 0.30 m/s. (a) At what angle, relative to the straight-across direction, must the boat be pointed? (b) How long does it take the boat to cross the river?
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Chapter 1 Solutions
College Physics
Ch. 1 - 1.18 [I] Three kids in a parking lot launch a...Ch. 1 - 1.19 [I] An ant walked 10.0 cm across the floor...Ch. 1 - 1.20 [I] A 12-mg housefly has a maximum speed of...Ch. 1 - 1.21 [I] According to its computer, a robot...Ch. 1 - 1.22 [I] A car’s odometer reads 22 687 km at the...Ch. 1 - 1.23 [I] A model plane flew 100 m in 25.0 s...Ch. 1 - 1.24 [I] A toy car traveled at an average speed...Ch. 1 - 1.25 [I] An auto travels at the rate of 25 km/h...Ch. 1 - 1.26 [I] Starting from the center of town, a car...Ch. 1 - 1.27 [II] A little turtle is placed at the origin...
Ch. 1 - 1.28 [II] A bug starts at point A, crawls 8.0 cm...Ch. 1 - 1.29 [II] A runner travels 1.5 laps around a...Ch. 1 - 1.30 [II] During a race on an oval track, a car...Ch. 1 - 1.31 [II] The following data describe the position...Ch. 1 - 1.33 [I] Find the scalar x- and y-components of...Ch. 1 - 1.34 [II] Starting at the origin of coordinates,...Ch. 1 - 1.35 [II] Compute algebraically the resultant of...Ch. 1 - 1.36 [II] What displacement at has an x-component...Ch. 1 - 1.37 [II] What displacement must be added to a...Ch. 1 - 1.38 [I] Refer to Fig. 1-20. In terms of vectors...Ch. 1 - 1.39 [I] Refer to Fig. 1-21. In terms of vectors...Ch. 1 - 1.40 [II] Find (a) , (b) , and (c) if , and
...Ch. 1 - 1.41 [II] Find the magnitude and angle of if .
Ch. 1 - 1.42 [II] Determine the displacement vector that...Ch. 1 - 1.43 [II] A vector is added to a vector . What...Ch. 1 - 1.44 [III] A truck is moving north at a speed of...Ch. 1 - 1.45 [III] A ship is traveling due east at 10...Ch. 1 - 1.46 [III] A boat, propelled so as to travel with...Ch. 1 - 1.47 [III] A reckless drunk is playing with a gun...
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