1. Speedboat (A) negotiates a curve whose radius is 130 m. Speedboat (B) negotiates a curve whose radius is 270 m. Each boat experiences the same centripetal acceleration. What is the ratio VA/VB of the speeds of the boats? 2. A motorcycle travels over the crest of a hill. The crest of the hill is a circular arc with a radius of 48.0 m. Determine th maximum speed that the cycle can have while moving over the crest without losing contact with the road. m/s 3. A planet orbits the sun with a period of 13 years. How far is the planet from the sun?(G=6.67x10-11N.m2/kg2 and Msun=1.99x1030kg) meters