orig question:A ladder 12 meters long is leaning against the wall of a building. The bottom of the ladder is sliding away from the wall at the rate of 1.5 m/s. How fast is the top of the ladder sliding down when it is 3 meters above the ground?

WHAT IF: How fast is the top of the ladder sliding down when it is 3 meters above the ground?

Enclose the unit of measurement in a pair of parenthesis, similar to the one shown below. 8 (ft/s)

posting again? impatient much?

and what if you didn't include a dumb WHAT IF question, after having asked it already? SMH