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1) A cyclist rides around a circle track with a constant speed of 8 m/s. If...

1) A cyclist rides around a circle track with a constant speed of 8 m/s. If the radius of the track is 150 m then what acceleration does it experience?

2) A 75 kg tightrope walker is in the middle of the rope. The tightrope sags in the middle and creates a 30 degree angle below the horizontal. What is the tension in the cable?

3) A 0.75 kg yo-yo is spun around at a constant speed in a circle. The circle has a radius of 1.255 m. If one revolution takes 0.5 seconds, find the angular speed and centripetal force.

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