College Physics
OER 2016 Edition
ISBN: 9781947172173
Author: OpenStax
Publisher: OpenStax College
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Textbook Question
Chapter 3, Problem 18PE
You drive 7.50 km in a straight line in a direction 15° east of north. (a) Find the distances you would have to drive straight east and then straight north to arrive at the same point. (This determination is equivalent to find the components of the displacement along the east and north directions.) (b) Show that you still arrive at the same point if the east and north legs are reversed in order.
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You drive 9.00 km in a straight line in a direction 20° East of North.
(a) Find the distances you would have to drive straight East and then straight North to arrive at the same point. (This is equivalent to finding the components of the displacement along the East and North directions.)km Eastkm North
(b) Show that you still arrive at the same point if the East and North legs are reversed in order.
You drive 6.00 km in a straight line in a direction 25° east of north.
(a) Find the distances (in km) you would have to drive straight east and then straight north to arrive at the same point. (This is equivalent to finding the components of the displacement along the east and north directions.
km east
km north
(b) Show that vou still arrive at the same point if the east and north legs are reversed in order. Assume the +x-axis is to the east.
Find the magnitude and the direction of the displacement in each of the following problems, using both graphical (geometric) method and trigonometric solutions.A motorist drives 1.50 km west, and then turns 2.10 km at 15° E of S. (1 cm: 0.3 km)
Chapter 3 Solutions
College Physics
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