Answer:
8
Step-by-step explanation:
IMA of Wheel and Axle :
IMA = Radius of wheel / Radius of axle
Radius of wheel, radius of handle, R = 1.6 cm
Radius of axle, radius of shaft, r = 0.2 cm
IMA = Radius of wheel / Radius of axle
IMA = 1.6 / 0.2
IMA = 8
Hence, the ideal mechanical advantage is 8