A ladder 5 m long is leaning against a wall

MATHEMATICS · Subjective · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

10. A ladder 5 m long is leaning against a wall. The bottom of the ladder is pulled along the ground, away from the wall, at the rate of

2 \mathrm{~cm} / \mathrm{s}

. How fast is its height on the wall decreasing when the foot of the ladder is 4 m away from the wall ?