O A motorist starts from rest at point A on a circular entrance ramp when t = 0, increases the speed of her automobile at a constant rate, and enters the highway at point B. Knowing that her speed continues to increase at the same rate until it reaches 100 km/h at point C, deter- mine (a) the speed at point B, (b) the magnitude of the total accelera- tion when t = 20 s.
O A motorist starts from rest at point A on a circular entrance ramp when t = 0, increases the speed of her automobile at a constant rate, and enters the highway at point B. Knowing that her speed continues to increase at the same rate until it reaches 100 km/h at point C, deter- mine (a) the speed at point B, (b) the magnitude of the total accelera- tion when t = 20 s.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question

Transcribed Image Text:A
Fig. P11.140
150 m
B
-100 m
C

Transcribed Image Text:11.140 A motorist starts from rest at point A on a circular entrance ramp
when t = 0, increases the speed of her automobile at a constant rate,
and enters the highway at point B. Knowing that her speed continues
to increase at the same rate until it reaches 100 km/h at point C, deter-
mine (a) the speed at point B, (b) the magnitude of the total accelera-
tion when t = 20 s.
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