A tight rope is stretched 30 feet above the ground between the Jay and the Tee buildings, which are 50 feet apart. A tightrope walker, walking at a constant rate of 2 feet per second from point A to point B, is illuminated by a spotlight 70 feet above point A, as shown in the diagram.

Question

a. How fast is the shadow of the tightrope walker’s feet moving along the ground when she is midway between the buildings? (Indicate units of measure).
b. How far from point A is the tightrope walker when the shadow of her feet reaches the base of the Tee building? (Indicate unit of measure.)
c. How fast is the shadow of the tightrope walker’s feet moving up the wall of the Tee Building when she is 10 feet from point B? (Indicate units of measure.)

Answer 1

ya boi be knowing dhis ya hurd

Answer 2

x/140=y/200