Question

if the mine winch drum diameter is 6m calculate how far the counterweight will lift for each single rotation of the drum use the formula C=2ttr​

Answer 1

A single rotation accounts for the circumference of the mine winch drum:

from formula:

`circumference = 2\pi r`

r » radius.

but r = 2 × diameter.

therefore; radius, r = 2 × 6 = 12 m

`c = 2 * 3.14 * 12 \\ { \underline{ \underline{ \: \: circumference = 75.36 \: m \: \: }}}`

[ considering π to be 3.14 ]