Speed of a car The accompanying figure shows the time-to- distance graph for a sports car accelerating from a standstill. P 650 600 500 E 400 300 200 100 5 10 15 20 Elapsed time (sec) a. Estimate the slopes of secant lines PQ,, PQ2, PQ3, and PQ4, arranging them in order in a table like the one in Figure 2.6. What are the appropriate units for these slopes? b. Then estimate the car's speed at time t = 20 sec. Distance (m)
Speed of a car The accompanying figure shows the time-to- distance graph for a sports car accelerating from a standstill. P 650 600 500 E 400 300 200 100 5 10 15 20 Elapsed time (sec) a. Estimate the slopes of secant lines PQ,, PQ2, PQ3, and PQ4, arranging them in order in a table like the one in Figure 2.6. What are the appropriate units for these slopes? b. Then estimate the car's speed at time t = 20 sec. Distance (m)
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter2: Representing Motion
Section: Chapter Questions
Problem 67A
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