# Related Rates (1)

- Author:
- Tim Brzezinski

- Topic:
- Calculus, Derivative

Suppose

**particle A**and**particle B**start at the same spot. Suppose**particle A**starts to head east at a speed of 10 m/s. At the same time**A**leaves its initial position,**particle B**starts heading north at a speed of 5 m/s. Play to animate, then answer the questions that follow. (**Please don't click the checkbox yet. Do so when prompted to.)**## 1.

At what rate is the distance, *w*, between *A* and *B* changing after 3 sec?

## 2.

At what rate is the distance, *w*, between *A* and *B* changing after 5 sec?

## 3.

At what rate is the distance, *w*, between *A* and *B* changing after 6 sec?