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1. A 750-kg racecar travels around a circular track with a radius of 75 meters. How many newtons of force must the track exert on

1. A 750-kg racecar travels around a circular track with a radius of 75 meters. How many newtons of force must the track exert on the tires if the car has a linear speed of 30 m/s? 2. A 30-kg child is spinning horizontally in a ride with a centripetal acceleration of 10 m/s/s. How many newtons of centripetal force are acting on her

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