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Give an example of an object that has balanced forces acting on it?
A book sitting on a table with the force of gravity pulling it downward and the normal force of the table pushing it upward.
What is a headstand where the weight is balanced between the top of your head and your two hands?
A headstand with weight balanced between the top of your head and hands is called a tripod headstand. This yoga pose requires strength in the arms and core, along with proper alignment for stability. It is important to practice this pose safely and with a spotter if needed.
What is the net force of an apple that weights 1N when you hold it at rest above your head?
The net force on the apple is 0 N because it is at rest, and the force of gravity pulling it downward (1 N) is balanced by the force you apply upwards when holding it at rest above your head.
Where can a first class lever be found in the body?
A first-class lever can be found in the body at the atlanto-occipital joint, where the head is balanced on top of the neck. The effort (muscle force) is applied at the back of the head when nodding forward, the fulcrum is at the joint itself, and the resistance is provided by the weight of the head.
What properties does a hammer need?
A hammer needs to be durable, have a sturdy handle for a secure grip, and a heavy head for delivering force efficiently. Additionally, it should have a well-balanced design for accurate and controlled strikes.
