A730-n man stands in the middle of a frozen pond of radius 5.0 m. he is unable to get to the other side because of a lack of friction between his shoes and the ice. to overcome this difficulty, he throws his 1.2-kg physics textbook horizontally toward the north shore at a speed of 5.0 m/s. how long does it take him to reach the south shore?

62.11 s

Explanation:

Given

weight of man =730 N

mass of man

radius of pound r=5 m

mass of book

velocity of book

let be the velocity of man

conserving momentum

time taken by man to reach south end

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.