A freeway exit ramp has a single 3.6 m lane and consists entirely of a horizontal curve with a central angle of 90 degrees and length of 200 m. If the distance cleared of obstacles is 6.95 m from the centerline, what design speed was used

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explanation:

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )