Miguel, the 72.0 kg bullfighter, runs toward an angry bull at a speed of 4.00 m/s. The 550. kg bull charges towards Miguel at 12.0 m/s and Miguel must jump on the bull’s back at the last minute to avoid being run over. What is the new velocity of Miguel and the bull as they move across the arena?
Miguel, the 72.0 kg bullfighter, runs toward an angry bull at a speed of 4.00 m/s. The 550. kg bull charges towards Miguel at 12.0 m/s and Miguel must jump on the bull’s back at the last minute to avoid being run over. What is the new velocity of Miguel and the bull as they move across the arena?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter2: One Dimensional Motion
Section: Chapter Questions
Problem 88PQ: In Example 2.12, two circus performers rehearse a trick in which a ball and a dart collide. We found...
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22. Miguel, the 72.0 kg bullfighter, runs toward an angry bull at a speed of 4.00 m/s. The 550. kg bull charges towards Miguel at 12.0 m/s and Miguel must jump on the bull’s back at the last minute to avoid being run over. What is the new velocity of Miguel and the bull as they move across the arena?
a. 13 m/s
b. 10.1 m/s
c. 7.5 m/s
d. 9.5 m/s
e. 8.39 m/s
23. A highway has a flat section with a tight level curve of radius 40 m. If the coefficient of static friction between tires and pavement surface is 0.45, what is the maximum speed v at which the car of mass m can negotiate the curve safely – in other words, without the tires slipping? (Hint: the friction force between tires and pavement = coefficient of static friction times normal force) *use g=9.8
a. 18 m/s
b. 23 m/s
c. 15 m/s
d. 13 m/s
e. 10 m/s
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