# Speed Skating#

In short-track speed skating skaters frequently fall. At one of the winter Olympics, speed skater Charles Hamelin won a gold medal in the 1500 $$m$$, but fell during a turn of the 500 $$m$$ sprint.

##### Long Description of image: Possible directions the skater slides
Fig.1 depicts a oval shaped skating rink with arrows that indicate the skaters skate in a counter clockwise direction. Point 'H' is located near the right side of the rink just before a turn. Letters 'A' to 'E' indicate possible motions that the skater could slide after falling. 'A' depicts a motion that is in the opposite direction as the circular skating direction. 'B' depicts sliding out to the right and away from the circular motion of the skaters. 'C' depicts a curved motion away from the uniform circular skating motion. 'D' depicts a straight line motion in the same direction that the skater was going in. 'E' depicts a curved motion that follows the direction and curve of the circular skating rink.

Long description ends.

## Part 1#

If Charles fell at the point marked H in Fig.1 while in uniform circular motion, at which labeled point would he have hit the safety retaining wall after a frictionless slide across the ice? (Arrows indicate the direction that skaters skate in.)

• A

• B

• C

• D

• E

## Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.