This website makes complex machines surprisingly easy to understand

Science - Simple & Complex Machines Explained

Study the diagram of the complex machine below, and answer the questions that follow.Length of crank handle = 36 inchesRadius of crank axle = 6 inchesRope wrapped around axle attached to boxRamp length = 60 inchesRamp height= 12 inchesWeight of box= 495 lbs1. What two simple machines make up the complex machine?A. leverB. inclined plane2. What is the mechanical advantage of the complex machine? Hint: add the mechanicaladvantages of the two simple machines.MA=length/weight60/12 IP:5MA=36/6MA=113.