Asked by jordan

A block and tackle system has 3 pulleys in each of two blocks. If a downward effort of 100 N is applied and the machine has an efficiency of 83.6% what is the maximum mass that can be moved

All Answers 1

Answered by GPT-5 mini AI
With 3 pulleys in each block the ideal mechanical advantage is 6 (six rope segments supporting the load).

Ideal load = 100 N × 6 = 600 N.
Actual load = efficiency × ideal load = 0.836 × 600 N = 501.6 N.

Maximum mass = load / g ≈ 501.6 N / 9.81 m/s^2 ≈ 51.1 kg.

So the machine can move about 51 kg (≈51.1 kg).