Mathematics

Problem

## End of Chapter 10 Drill The answers are in Chapter 24. 1. A 25 ft ladder is sliding down a wall at

-6 \mathrm{ft} / \mathrm{s}

. How fast is the bottom of the ladder sliding out when the top of the ladder is 20 ft from the ground? (A)

2 \mathrm{ft} / \mathrm{s}

(B)

6 \mathrm{ft} / \mathrm{s}

(C)

8 \mathrm{ft} / \mathrm{s}

(D)

15 \mathrm{ft} / \mathrm{s}

(A)

2 \mathrm{ft} / \mathrm{s}

(B)

6 \mathrm{ft} / \mathrm{s}

(C)

8 \mathrm{ft} / \mathrm{s}

(D)

15 \mathrm{ft} / \mathrm{s}