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Force is the only thing that can set a motionless object in motion.
If the object hangs from a weightless string or thread, the tension in the thread is equal to the weight of the object. If there is weight distributed all the way from the ceiling to the bottom of whatever is hanging, then the tension at every point is equal to the weight of everything below that point.
What force balances the force of gravity on a hanging light?
Force is the only thing that can set a motionless object in motion.
The force of gravity on the hooked masses supplies the tension in the string which in turn supplies the centripetal force that keeps the body rotating.It would be better to say that the weight of the hanging masses IS the centripetal force that keeps the body revolving.... and so the two forces are equal because there is really on one force.
When a pen is hanging, two forces act on it - the upthrust and the force of tension in the string.
You are using your muscles to apply an upward force to the book equal to its weight. That force is equal in magnitude to the downward force on the book due to the gravitational attraction of the earth, and opposite in direction. Since equal and opposite forces are applied to the book, the net force on it is zero, and its acceleration is zero ===> if it began motionless, it remains motionless.
Force is the only thing that can set a motionless object in motion.
NO
If the object hangs from a weightless string or thread, the tension in the thread is equal to the weight of the object. If there is weight distributed all the way from the ceiling to the bottom of whatever is hanging, then the tension at every point is equal to the weight of everything below that point.
What force balances the force of gravity on a hanging light?
Force is the only thing that can set a motionless object in motion.
The force of gravity on the hooked masses supplies the tension in the string which in turn supplies the centripetal force that keeps the body rotating.It would be better to say that the weight of the hanging masses IS the centripetal force that keeps the body revolving.... and so the two forces are equal because there is really on one force.
The force of gravity acting on it is 4.9 newtons (1.102 pounds), provided the beaker is in a lab on Earth. We don't know the buoyant force on it, because we don't know its volume. Whatever its volume is, you can subtract the weight of an equal volume of water, and the result is the tension in the string.
Go to the Ice planet. There should be a string hanging out of the wall . pull the srting and you should have the stone (P.S. The string is BROWN)
If the pulley is fixed (hanging from the ceiling), and the rope passes over it, then 100 lbs of force is required. If the rope is fixed to the ceiling and passes under the pulley (which is fixed to the load), then 50 lbs of force is required.
The force of gravity, weight = mg.