To calculate the effort needed to lift a load with the aid of a machine, we can use the formula:
Effort = Load / (Velocity ratio * Efficiency)
Given:
Velocity ratio = 5
Efficiency = 80% = 0.8
Load = 200N
Effort = 200N / (5 * 0.8)
Effort = 200N / 4
Effort = 50N
Therefore, the effort required to lift the load of 200N with the aid of this machine is 50N.
A machine has velocity ratio 5 and 80% efficient. What effort would be needed to loft a load of 200N with the aid of this machine
1 answer