A 50N weight is swung in a vertical circle at the end of the 1.8m cord. The maximum strength of the cord is 200N.

a. Compute the minimum velocity at which the cord will break.

b. Compute the minimum strength of the cord for the weight to be swung in a complete vertical circle.

c. Compute the height above the lowest position will the weight rise on the circular path if the maximum strength of the cord is 200N.