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If 60 lbs of force must be applied to the valve for it to open how much upward force must push rod X apply for the valve to open?

The upward force required on push rod X to open the valve would also be 60 lbs, as it must be equal to the force needed to open the valve. Push rod X needs to counteract the same amount of force applied on the valve for it to open.


How much force is exerted on a door handle?

The force exerted on a door handle depends on the weight of the door, the distance from the handle to the hinge, and how much force is applied to open or close the door. It can range from a few pounds to several tens of pounds.


What are examples of wedges on top of levers?

An axe head on a handle is an example of a wedge on top of a lever, as the sharp edge of the axe acts as the wedge while the handle acts as the lever for applying force to split wood. Another example is a doorstop, where the sloped wedge can be pushed under a door to hold it open, with the handle portion providing the leverage to push it into place.


How would the force needed to open a door change if you put the handle in the middle of the door?

If the doorknob were moved to the middle of the door, it would take twice as much force to open it than if it were at the edge of the door. With the mass of the door being equal. Moment = the force to open the door times the distance to the center of the hinges. If the distance were cut in half it would take twice the force to keep the equation true.


What is an example of pulling force?

An example of a pulling force is when you tug on a door to open it. As you pull the door towards you, you are exerting a pulling force on the door to overcome its resistance and open it.