A cyclist doubles her speed. Because drag goes as the square, it becom…

Question

A cyclist doubles her speed. Because drag goes as the square, it becomes about:

Accepted Answer

D. Four times

1. Drag rises with speed squared.
2. Two squared is four.
3. So drag becomes about four times.
_Source: OpenStax University Physics Volume 1, Chapter 6, Applications of Newton's Laws._

Answer

Two times

Answer

Half again

Answer

Ten times

A cyclist doubles her speed. Because drag goes as the square, it becomes about:

Keep practising Friction Drag and Circular Motion