Answer:
4
Step-by-step explanation:
I took it on the test its 4
The answer is 5
tell me if wrong
Potential energy on the ground to kinetic energy climbing the rope to gravitational potential energy at the top of the rope
AB = 9 cm
BC = 6cm
CD = 7 cm
AE = 6 cm
3BC = AB
3ED = AE
AB = AE
BC ED
⁹/₃ = ⁶/ₓ
3 · 6 = 9 · x
18 = 9x
9 9
2 = x
ED = 2 cm