Reaction problem
NINE FIVE RUPEE COINS ARE PUT ON TOP OF EACH OTHER ON A TABLE.EACH COIN HAS A MASS m kg .THE REACTION OF THE FIFTH COIN(COUNTED FROM BOTTOM)ON SIXTH COIN IS.
Asked Alvy
Answer:-)
4mg as there are invited4 coins above the 5th coin from bottom.
Categories: aieee, Ask Physics, CBSE PHYSICS CLASS XI, Laws of Motion Tags: reaction
The Physics of Carpet Cleaning!
Why when a hanging carpet is beaten with a stick, the dust particles start coming out of it?
Please explain to me, in a simple language.
Asked Osho Garg
Answer:
This is due to the inertia of rest of the dust particles.
When the mat is beaten suddenly with a stick, the mat moves forward, but the dust tends to remain at the same position on account of the inertia of rest. When the mat/ carpet moves, the dust particles lose support and they fall down
Categories: Ask Physics, Interesting Questions, Laws of Motion Tags: Business, Carpet, carpet clean, Carpet cleaning, Cleanliness, Dry cleaning, Mysticism, Mystics and Teachers, Osho, Religion and Spirituality, Textiles, Textiles and Nonwovens, Vacuum cleaner
Newton’s Third Law of Motion and some doubts
Newton’s Third Law of Motion states that
“Every action has equal and opposite reaction”
In other words,
“Whenever a body exerts a force on another body, the second body exerts an equal and opposite force on the first body”
Osho Garg asks:
“if a person is sitting on a chair both the chair and person exert force against it so we called that ” there is always an equal and opposite reaction ” but for example a elephant of mass 584 kg sit on a chair, the chair will broke. So what we called for this . Please explain.
Answer:
When an elephant “sits” on a chair, it breaks because it cannot give the “equal reaction” and it “yields” to it.
Therefore, here the force is doing “work”.
More discussions are welcome
Categories: Ask Physics, Interesting Questions, Laws of Motion Tags: acceleration, Alternative, Isaac Newton, Net force, Newton, Newton's laws of motion, physics, reaction
