//Man moving
//Weight of man
W1=800  //N
v=3  //m/sec
//Weight of system after man jumps into boat
W2=800+3200  //N
//(a) Initial velocity of boat
//using principle of conservation of momentum
v=0.6  //m/sec
//(b) Initial velocity of boat =0.9 m/sec towards the pier
//Applying principle of conservation of momentum
v1=-0.12  //m/sec
printf("\nVelocity of boat and man will be %.3f m/sec towards the pier",-v1)