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Why isn't work done as you hold a book motionless over your head?
Work is the product of force and displacement in the direction of the force. When holding a book motionless over your head, the force applied is vertical while the displacement is zero. Therefore, no work is being done as there is no movement in the direction of the force.
What is static head of water?
Static head of water refers to the vertical distance between the water surface and the point of measurement. It represents the potential energy stored in the water due to its height and is a key factor in calculating pressure and flow in fluid systems.
How much work is done if you hold a 50 N barbell over your head for 5 minutes?
The work done is zero, because holding the barbell over your head does not involve moving it vertically. Work is only done when there is a displacement in the direction of the force being applied.
A boy weighing 30 kg carries a load of 10 kg on his head and moves straight through a distance 5 m on a horizontal floor What is the work done by the boy?
The work done by the boy carrying the load on his head is zero, because the force applied is perpendicular to the displacement. Work is only done when the force and displacement are in the same direction.
When riding a descending elevator that stopped suddenly the blood rushes from your head to your feet.how does this considered as a manifestation of newtons first law?
When the elevator suddenly stops, your body tends to remain in motion due to inertia (Newton's First Law). As a result, your blood continues moving downward towards your feet until it catches up with your body's new motionless state. This is why you may feel a momentary sensation of blood rushing from your head to your feet.
Why isn't work done as you hold a book motionless over your head?
Work is the product of force and displacement in the direction of the force. When holding a book motionless over your head, the force applied is vertical while the displacement is zero. Therefore, no work is being done as there is no movement in the direction of the force.
What are good sentences for the word motionless in the sentence?
The man lay they motionless after I shot him in the head once.When Al went to check on the girl who'd fainted, she was lying there motionless, later pronounced dead.
How to work out abs through motionless exercise?
There are many isometric, or motionless, exercises that a person can do for their abdominal muscles. Planking--resting on the elbows with a ridged body--is one of the most common and effective. Another is a leg raise, where a person raises their legs and head and remains stationary in this position for a period of time, typically more than thirty seconds.
Is the weightlifter doing any work when she holds the barbell motionless above her head?
This weightlifter did work on the barbell to lift it over her head.
What is the duration of The Head?
The duration of The Head is 660.0 seconds.
What is the duration of Head Case?
The duration of Head Case is 720.0 seconds.
What is the duration of Head Chef?
The duration of Head Chef is 3600.0 seconds.
What is the duration of Out of Jimmy's Head?
The duration of Out of Jimmy's Head is 1320.0 seconds.
What is the duration of Head Cases?
The duration of Head Cases is 2580.0 seconds.
What is the duration of Against the Head?
The duration of Against the Head is 1800.0 seconds.
What is the duration of Head of the Class?
The duration of Head of the Class is 1440.0 seconds.
What is the duration of Fred's Head?
The duration of Fred's Head is 1320.0 seconds.
