which is heavier 1kg. of iron or 1kg. of cotton?and why?
Answer Posted / palash
The question is which one is heavier.The question is not which one will fall soon.So no buoyancy effect comes into picture.
what rest is the weight.Now w=mg.
1 kg mass is a constant and standard value in anywhere in the universe.
So both iron and cotton are having same amount of matter
(1 kg) in it.
Remember the air inside the cotton will not be taken into account as we are taking pure 1kg of cotton.If you are taking air then it will be more than 1 kg of cotton.
So they will experience (1*9.81) N both in earth ground.
So the answer of the question is they are same as weight though volume of 1 kg cotton is larger than 1kg of iron.
***********
(If they are freely falling then the cotton will take much time due to large volume and so bigger buoyancy effect of air.
In space they will take same time to fall a distance.)
Is This Answer Correct ? | 48 Yes | 19 No |
Post New Answer View All Answers
Define a slined joint?
Which theories of failure are used for brittle materials ?
diffrence between fmea, pfmea,
What is maximum continuos Rating?
what do you mean by emissive power?
how calculate the bearing number from inner and outer dia of bearing
How to calculate heat load .For example 10 TR .Then how we will find load (we want rh(relatavie humidity) sir)
Explain the difference between projectile motion and rocket motion.
why desuperheater tubes are bend in shape
What are the causes of troubles in boiler during operations?
What is the purpose of air cooler of D/E?
What are the different types of bearings?
what is cyclon seperator and water column?
What is the purpose of air blow?
What is the purpose of scrapper ring