What is the best explanation of the image shown? A. The ball was pitched at orbital velocity
B. The ball was pitched at more than orbital velocity but less than escape velocity
C. The ball was pitched at escape velocity
D. The ball was pitched at more than escape velocity

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.