in a certain lifting machine an effort of 2Newton lift a load of 30 Newton if the effort lost due to friction at this load is 0.5 N .find velocity ratio and efficiency of machine
Answers
Answer: To find the velocity ratio of a lifting machine, you can use the following formula:
Velocity ratio = Load / Effort
In this case, the load is 30 Newton and the effort is 2 Newton, so the velocity ratio is:
Velocity ratio = 30 / 2
Which simplifies to:
Velocity ratio = 15
Therefore, the velocity ratio of the lifting machine is 15.
To find the efficiency of the machine, you can use the following formula:
Efficiency = (Output power / Input power) x 100%
In this case, the output power is the load (30 Newton) multiplied by the velocity (the distance the load is lifted, which is not given in the problem), and the input power is the effort (2 Newton) multiplied by the distance the effort is applied (also not given in the problem).
Since the output and input powers are not given, it is not possible to calculate the efficiency of the machine using the formula provided. If you have additional information about the distance the load is lifted and the distance the effort is applied, you can use this information to calculate the efficiency of the machine.
I hope this helps! Let me know if you have any additional questions or need further clarification.
Explanation:
In a machine an effort of 2 N lifted a load of 30 N. If the effort lost due to friction is
0.5 N. Find the velocity ratio and efficiency of machine