W is directly proportional to U. If W = 5 when U = 3, find U when W = \(\frac{2}{7}\)
-
\(\frac{6}{35}\)
- \(\frac{10}{21}\)
- \(\frac{21}{10}\)
- \(\frac{35}{6}\)
The correct answer is: A
Explanation
W \(\alpha\) U
W = ku
u = \(\frac{w}{k}\); \(\frac{2}{7}\) x \(\frac{3}{5}\)
= \(\frac{6}{35}\)
There is an explanation video available .