Arope runs through a pulley 3.05 m off the ground. one end hangs straight down and is attached to a car's engine that is being hoisted. the other end is attached 0.61m off the ground to the rear bumper of another car. the car drives away at 4 km/h. how fast, in m/s, is the rope going through the pulley when the car's rear bumper is 4.88m from being under the pulley? the rope is long enough so that the engine is between the ground and the pulley.

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

mia khalifa

step-by-step explanation:

the answer is 1 becuz if it were 1.0 that would rip apart the entire so ya. : )

~potato.

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