Question

A wheel and axle have radaii 80cm and 10cm respectively, if the efficiency of the machine is 0.85, what load will an applied force of 1200n to the wheel raise?

Answer 1

Answer:

Load will be applied force of 1200n to wheel raise

Explanation:

Given:

• Efficiency is e=85
• Applied force is F=1200 N
• Efficiency = (M A/V.R) × 100Efficiency=(MA/V.R)× 100

Solution:

Hence,

M A is mechanical advantage

V.R= velocity ratio = 80/10

So,

Efficiency =(M A/V.R) × 100

85 = (Load/1200) × (10/80) × 100

Load = 8160 N

Hence,

The load is 8160 N