A motorist is about to enter the exit ramp of a highway. When it is 50 m before reaching A (along the straight path), the motorist travels at 80 km/h, decreasing at the rate of 0. 5 m/s 2 until it reaches B. After it reaches B, it travels at a constant speed. Determine the magnitude of the acceleration: a. just after A b just beforeR

College Physics
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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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A motorist is about to enter the exit ramp of a
highway. When it is 50 m before reaching A (along
the straight path), the motorist travels at 80 km/h,
-A
decreasing at the rate of 0. 5 m/s
2 until it reaches B.
After it reaches B, it travels at a constant speed.
B
Determine the magnitude of the acceleration:
a. just after A
b. just before B
c. just after B
100 m
Transcribed Image Text:A motorist is about to enter the exit ramp of a highway. When it is 50 m before reaching A (along the straight path), the motorist travels at 80 km/h, -A decreasing at the rate of 0. 5 m/s 2 until it reaches B. After it reaches B, it travels at a constant speed. B Determine the magnitude of the acceleration: a. just after A b. just before B c. just after B 100 m
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