Aperson travels by car from one city to another with different constant speeds between pairs of cities. she drives for 55.0 min at 80.0 km/h, 10.0 min at 70 km/h, and 55.0 min at 55.0 km/h, and spends 55.0 min eating lunch and buying gas. (a) determine the average speed for the trip. (b) determine the distance between the initial and final cities along this route.
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A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?
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A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
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Aperson travels by car from one city to another with different constant speeds between pairs of citi...
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