A machine with a velocity ratio of30 moves a load of 3000 n when an effort of 200 n is applied.the efficiency of machine is 30%,50%,60%25%,75%

The efficiency of the machine is 25%.

3,000 Newtons / 30 = 100 Newtons required for a PERFECT machine

we needed twice as much
so efficiency is 0.50 or 50%

Did you know?

Did you know that the efficiency of a machine can greatly impact its performance? In the scenario mentioned, where a machine with a velocity ratio of 30 moves a load of 3000 N, the efficiency of the machine plays a crucial role. If the machine has an efficiency of 30%, it means that only 30% of the applied effort of 200 N is effectively used in moving the load. With a 50% efficiency, half of the effort is utilized, and with a 60% efficiency, 60% of the effort is employed. However, if the efficiency drops to 25%, only a quarter of the effort contributes to the load movement. Conversely, a 75% efficiency indicates that three-quarters of the effort is effectively utilized for moving the load. Therefore, understanding and maximizing the efficiency of a machine is essential for optimal performance.