//Example 7_8
clc();
clear;
//To find out the tension in the string when the ball is at point A
//As (T+W)=((m*v^2)/r)
printf("Tension in the string is T=m*((v^2/r)-g)\n")
printf("If v^2/r==g then the tension in the string is zero\n")
printf("If v<sqrt(r*g) then the required centripetal force is less than the balls weight")