Situation 4. A driver traveling at a speed of 70m/s on a highway applies his brakes at point A and reduces his speed at a uniform rate to 50m/s at C. The distance from A to B is 150m and point B and point C creates a circular arc that measures 120m. The circular arc has a radius of 500m. R = 500m C AO B

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Chapter7: Rotational Motion And The Law Of Gravity
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Problem 15P: A car initially traveling eastward turns north by traveling in a circular path at uniform speed as...
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Situation 4.
A driver traveling at a speed of 70m/s on a highway applies his
brakes at point A and reduces his speed at a uniform rate to 50m/s at
C. The distance from A to B is 150m and point B and point C creates a
circular arc that measures 120m. The circular arc has a radius of 500m.
R = 500m
AO
BO
Determine the normal acceleration at point B.
a. 7.41 m/s^2
b. 7.13 m/s^2
c. 4.44 m/s^2
d. 8.40 m/s^2
Calculate the magnitude the total acceleration of the race car an
instant after it passes point B.
a. 7.41 m/s^2
b. 7.13 m/s^2
c. 4.44 m/s^2
d. 8.40 m/s^2
A.
B.
Transcribed Image Text:Situation 4. A driver traveling at a speed of 70m/s on a highway applies his brakes at point A and reduces his speed at a uniform rate to 50m/s at C. The distance from A to B is 150m and point B and point C creates a circular arc that measures 120m. The circular arc has a radius of 500m. R = 500m AO BO Determine the normal acceleration at point B. a. 7.41 m/s^2 b. 7.13 m/s^2 c. 4.44 m/s^2 d. 8.40 m/s^2 Calculate the magnitude the total acceleration of the race car an instant after it passes point B. a. 7.41 m/s^2 b. 7.13 m/s^2 c. 4.44 m/s^2 d. 8.40 m/s^2 A. B.
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