Step-by-step explanation:
MA = Load / Effort
20 = 4 N / 6 N
Now, let's solve for dL:
dL / dE = MA / VR
dL / 2 m = 20 / 6
dL = (20 / 6) × 2
dL = 6.67 meters
Now, we can calculate the efficiency:
Efficiency = (MA / VR) ×100%
Efficiency = (20 / 6) × 100%
Efficiency ≈ 333.33%