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...resultant force exerted by t? Suppose you ride a bicycle in a 19.6-m-radius circle on a horizontal surface. The resultant force exerted by the surface on the bicycle (normal force plus frictional force) makes an angle of 14.0° with the vertical. (a) What is your speed? (b) If the frictional...

Suppose you ride a bicycle in a 19.6-m-radius circle on a horizontal surface. The resultant force exerted by the surface on the bicycle (normal force plus frictional force) makes an angle of 14.0° with the vertical. (a) What is your speed? (b) If the frictional force on the bicycle is half its...