clear clc disp('Ex-4.9') h=1.05*10^-34; //value of planck's constant in J.sec delx= 1; // uncertainity in positon= dimension of the ball delp=h/delx; // uncertainity in momentum m=0.1; //mass of the ball in kg delv=delp/m; // uncertainity in velocity printf('The value of minimum velocity was found out to be %1.2e m/sec',delv);