Considering the problem of Example 9.13, for what values of l does the approximation

have a percentage error of less than 0.05% when R = 5 and r = 4?

Data from Example 9.13

The continuous belt has length L given by

Show that when R – r ≪ l, a good approximation to L is given by

Transcribed Image Text:

L = 21 + (R-r) 1 + 3.14(R + r)