A 730 N student stands in the middle of a frozen pond having a radius 5.0 m. She is unable to get to the other side due to a lack of friction between her shoes and the ice. To overcome this difficulty, she throws her 2.6 kg physics textbook horizontally toward the north shore at a speed of 5.0 m/s. How long does it take her to reach the south shore?

A 730 N student stands in the middle of a frozen pond having a radius 5.0 m. She is unable to get to the other side due to a lack of friction between her shoes and the ice. To overcome this difficulty, she throws her 2.6 kg physics textbook horizontally toward the north shore at a speed of 5.0 m/s. How long does it take her to reach the south shore?