If it took 5 seconds to lift the crate,using a machine,what was the power rating of the machine.
Ashworth is a strange name for a school subject.
Divide the product of the weight of the crate (in Newtons) and the distance that is was lifted (in meters) by the time in seconds. The answer will be in Watts.
There must have been other data as part of your question which you have not provided in your post.
To determine the power rating of the machine, we need to know the work done (which is lifting the crate) and the time taken to perform the work. Power is defined as the amount of work done per unit of time. The formula for power is:
Power = Work / Time
Given that it took 5 seconds to lift the crate, we have the time component. However, we need additional information to calculate the work done. To find the work done, we need to know the force applied to lift the crate and the distance it was lifted.
If you have the force applied and the distance lifted, you can calculate the work done using the formula:
Work = Force x Distance
Once you have both the work done and the time taken, you can then use the formula above to calculate the power rating of the machine.