### Related Rate Ladder Problem is assessed.

A 16-ft ladder leans against a wall. The bottom of the ladder is 5 ft from the wall at time t = 0 and slides away from the wall at a rate of 3 ft/s. Find the velocity of the top of the ladder at time t = 1. a) The textbook response to this question is - sqrt (3) is approximately equal too -1.732 ft/s. The minus sign means