Suppose an 800 kg stunt race car goes around a turn on a track, on which it experiences uniform circular motion. The radius of the turn is 25 m and the car is going at 50 km/h. What is the centripetal force required for the car to make the turn (assuming uniform circular motion)? (a) (b) What is the angular speed (in rad/s) of the car with respect to the centre of the turn? (c) What is the angular momentum of the car with respect to the centre of the turm?
Suppose an 800 kg stunt race car goes around a turn on a track, on which it experiences uniform circular motion. The radius of the turn is 25 m and the car is going at 50 km/h. What is the centripetal force required for the car to make the turn (assuming uniform circular motion)? (a) (b) What is the angular speed (in rad/s) of the car with respect to the centre of the turn? (c) What is the angular momentum of the car with respect to the centre of the turm?
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Transcribed Image Text:Suppose an 800 kg stunt race car goes around a turn on a track, on which it experiences uniform
circular motion. The radius of the turn is 25 m and the car is going at 50 km/h.
What is the centripetal force required for the car to make the turn (assuming uniform circular
motion)?
(a)
(b)
What is the angular speed (in rad/s) of
car with respect to the centre of
tur
(c)
What is the angular momentum of the car with respect to the centre of the turn?
(d)
As part of the stunt a 60 kg person jumps (radially) into the car. What is the speed after this
occurs?
(e)
After jumping into the stunt car, the person applies the breaks resulting in a friction force of
300 N. How long does it take to stop the car and passenger?
(f)
What is the total energy dissipated by friction in bringing the car and passenger to rest?
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