1. Math
  2. Calculus
  3. a piano is suspended by a 90 ft rope through...

Question: a piano is suspended by a 90 ft rope through...

Question details

A piano is suspended by a 90 ft rope through a pulley that is 40 ft above a man's arms. The piano is at some height above the ground. At t=0, the man is 30 ft horizontally from the piano and walks away at 12 ft/s. How fast is the piano being pulled up?

(A) 1.0 ft/s

(B) 2.1 ft/s

(C) 4.5 ft/s

(D) 5.2 ft/s

(E) 10.4 ft/s

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution