Which of the following best approximates the magnitude of the acceleration of Penny's car just after they pass point B? a.7.67 m/s2 b.2.03 m/s2 c.7.54 m/s2 d.7.94 m/s2

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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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Which of the following best approximates the magnitude of the acceleration of Penny's car just after they pass point B?

a.7.67 m/s2
b.2.03 m/s2
c.7.54 m/s2
d.7.94 m/s2

Dr. Sheldon Cooper and Penny are on the way to the Comic Book Store to buy a gift for Leonard. Penny is driving her car at a speed of 30.0 m/s along a straight
portion of the expressway of Pasadena when she applies the brakes at point A and reduces her speed at a uniform rate until her speed at C becomes 18.00 m/s.
The curved section B-C is 62.0 m long with a constant radius of curvature of 75.0 m.
80 m
B
75 m
62 m
1. Which of the following statements are TRUE regarding the motion of Penny's car along the curved portion of the path B-C?
I. Its acceleration is tangent to its path.
II. Its velocity is tangent to its path.
III. Its normal acceleration is directed towards point D.
Transcribed Image Text:Dr. Sheldon Cooper and Penny are on the way to the Comic Book Store to buy a gift for Leonard. Penny is driving her car at a speed of 30.0 m/s along a straight portion of the expressway of Pasadena when she applies the brakes at point A and reduces her speed at a uniform rate until her speed at C becomes 18.00 m/s. The curved section B-C is 62.0 m long with a constant radius of curvature of 75.0 m. 80 m B 75 m 62 m 1. Which of the following statements are TRUE regarding the motion of Penny's car along the curved portion of the path B-C? I. Its acceleration is tangent to its path. II. Its velocity is tangent to its path. III. Its normal acceleration is directed towards point D.
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