Question

1) A Red Car and a Blue Truck are driving down a winding road. Through the first curve in the road, the Red Car is driving twice as fast as the Blue Truck. The second curve is half the radius of the first, which causes the Red Car to slow down to half the speed of the Blue Truck to drive around the curve. Rank the acceleration each vehicle experiences in each curve from largest to smallest.

-blue truck in first curve

-red car in first curve

-red car in second curve

-blue truck in second curve

2) A ball is being swung in a vertical circle by a string. When at the bottom of its circular path, the net centripetal force acting on the ball can be calculated by..

3) Two asteroids in space that are near each other experience a force of 5,265 N due to the gravitational force between them.  If their positioning was changed so that they were spaced 0.5 times their original distance apart, what would the new force of attraction between them be?

4) A car drives around a curve with a centripetal acceleration of 9.2 m/s². If the car is driving at 24 m/s, what is the radius of the curve?

5) A 0.42 m long string with a 0.32-kg ball attached to the end is being used to swing the ball in a circle at a constant speed. If the tension in the string is 5 N, what is the speed of the ball?

6) A Ferris wheel at a carnival has a radius of 31 m and turns so that the speed of the riders is 5.4 m/s. What is the magnitude of the centripetal acceleration that the riders experience?

Answer 1