A roller-coaster car has a mass of 504 kg when fully loaded with passengers. The path of the coaster from its initial point shown in the figure to point B involves only up-and-down motion (as seen by the riders), with no motion to the left or right. Assume the roller-coaster tracks at points ® and ® are parts of vertical circles of radius r, = 10.0 m and r2 = 15.0 m, respectively. (a) If the vehicle has a speed of 20.6 m/s at point ©, what is the force exerted by the track on the car at this point? N (b) What is the maximum speed the vehicle can have at ® and still remain on the track? m/s

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Chapter1: Units, Trigonometry. And Vectors
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A roller-coaster car has a mass of 504 kg when fully loaded with passengers.
The path of the coaster from its initial point shown in the figure to point B
involves only up-and-down motion (as seen by the riders), with no motion to
the left or right. Assume the roller-coaster tracks at points ® and ® are parts
of vertical circles of radius r, = 10.0 m and r2 = 15.0 m, respectively.
(a) If the vehicle has a speed of 20.6 m/s at point ®, what is the force
exerted by the track on the car at this point?
N
(b) What is the maximum speed the vehicle can have at ® and still
remain on the track?
m/s
Transcribed Image Text:A roller-coaster car has a mass of 504 kg when fully loaded with passengers. The path of the coaster from its initial point shown in the figure to point B involves only up-and-down motion (as seen by the riders), with no motion to the left or right. Assume the roller-coaster tracks at points ® and ® are parts of vertical circles of radius r, = 10.0 m and r2 = 15.0 m, respectively. (a) If the vehicle has a speed of 20.6 m/s at point ®, what is the force exerted by the track on the car at this point? N (b) What is the maximum speed the vehicle can have at ® and still remain on the track? m/s
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