A MAN GRASP A ROPE 6M ABOVE THE GROUND, FROM HIS HAND THE ROPE GOES STRAIGHT UP TO A PULLEY 36M ABOVE THE GROUND AND THEN STRAIGHT DOWN TO THE WEIGHT RESTING ON THE GROUND. IF THE MAN, HOLDING FAST TO A ROPE AND KEEPING HIS HAND 6M ABOVE THE GROUND WALKS AWAY AT A CONSTANT RATE OF 10M/S, HOW FAST IS THE WEIGHT RISING:

Question

I. 1 SECOND AFTER THE MAN STARTS TO WALK
II. WHEN THE WEIGHT IS 20M ABOVE THE GROUND.