The ends of a rod

MATHEMATICS · Subjective · CBSE · Mathematics · Applications of Derivatives · Applications of Derivatives

Problem

The ends of a rod

AB

, which is

5\,\text{m}

long, move along two grooves

OX

and

OY

that are at right angles. If

A

moves at a constant speed of

\frac{1}{2}\,\text{m/s}

, what is the speed of

B

when it is

4\,\text{m}

from

O