//Value of P
//refer fig. 17.9 (a),(b)and(c)
//Let t1 be the time required to bring the system to rest
N=1000  //N
F=0.2*1000  //N
//Applying impulse momentum equation upto stationary condition and leftward motion and solving those equations by trial and error method we get
P=645.74  //N
printf("Value of P is %.3f N",P)