Question

When a ball of cotton and a stone are dropped simultaneously, which one will fall first? or will they fall at the same time?

Answer 1

Ideal conditions = they both fall at the same time, but due to resistance from air they'd change.

Answer 2

ya if its something very light, like a feather or something, then the stone will fall first right?

Answer 3

ya

Answer 4

thanks

Answer 5

but only if air resistance is considered.. most of times when that question is asked.. m sure air resistance is neglected..

Answer 6

if you neglect air resistance , like in vacuum so answer is clearly that both cotton and stone are equally fall and reach equally in the same time.

Answer 7

or when we say there is air resistance so ofcourse cotton will take time.

Answer 8

ok @ShikhaDessai

Answer 9

thank u soooooo much @mayankdevnani
i was kind of confused with 2 answers

Answer 10

welcome...sis

Answer 11

there are many possible conditions the cotton ball may also reach first because since you all know about air resistance and air resistance on the stone may be larger

Answer 12

u mean friction due to air is more on the cotton

Answer 13

yaa

Answer 14

not cotton you told about cotton ball

Answer 15

in short, she said that. ok @harsh314

Answer 16

ya i mean cotton ball

Answer 17

their is a difference between a piece of cotton, a ball of cotton, a molecule of cotton..........

Answer 18

i know...

Answer 19

ya u r absolutely right!!! i just forgot to add ball

Answer 20

yes so as per the question the cotton ball is in the context so we need to know that if the ball of cotton has a greater mass and aerodynamical shape such that the density is quite low and the pressure acting on the ball is less.....,,,,,,

Answer 21

umm i really dont know what is aerodynamical(i'm only in the 8th)....and where pressure is concerned, i think it is the acceleretion due to gravity that matters..

Answer 22

what do you know about air resistance

Answer 23

i know about friction due to air

Answer 24

what is friction

Answer 25

when two things rub against each other, friction is caused

Answer 26

yes what is resistance then.....

Answer 27

ummm i dont know

Answer 28

resistance means oppostion so in simple terms air resistance is the opposition of air to any moving particle.......such that it obstructs its motion.....

Answer 29

you got somthing

Answer 30

so r air resistance n friction the same?

Answer 31

see friction and air resistance are not identical i cant explain much because it will not be clear to you .

Answer 32

umm ohk

Answer 33

understand it like this:
when any body falls from through air the particles of air collide with it as when throw a ball in water then the particles of water collide with that ball ........similarly assume about air.

Answer 34

hence when particles collide so the motion of the ball is obstructed tnd that is the air resistance........got it

Answer 35

i'm getting it a bit

Answer 36

ok now i understood

Answer 37

thanks

Answer 38

mention not no problem is the always ready is the ..................good to see is the you are studying is the ,.,,,,,,,,,,,,, best of luck is the dear sis ...........

Answer 39

what is this "is the" thing?

Answer 40

F.I.R sab tv pe ata hai.......

Answer 41

hahahahaha tum bhi @harsh314

Answer 42

oh ya i used to watch that...gopi right?

Answer 43

right!!! gopi, gulgule many more...

Answer 44

tumne sahi pehchana it is right is the
raat ho gayi isi liye gud night is the............

Answer 45

ohk

Answer 46

bye...

Answer 47

hmm, id say that they both fall at the same time, but rather have the potential to land at different times depending on other conditions :)

Answer 48

so under vaccuum,both ll fall at same time eh?

Answer 49

ya

Answer 50

so the resistance offered by the air is responsible fr the increase in time fr the cotton ball?

Answer 51

ya right...that's what i understood due to @harsh314 's explanation