- #1

HELP PLEASE!!!!!!!

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- #1

HELP PLEASE!!!!!!!

- #2

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I guess the answer is 2.08333 years.

1.25=x{1-(v/c)^2}^.5

x=2.08333

1.25=x{1-(v/c)^2}^.5

x=2.08333

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- #3

I guess the answer is 2.08333 years.

1.25=x{1-(c/v)^2}^.5

x=2.08333

thats right!!

but how did you get that?

do you need to convert the velocity?

- #4

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thats right!!

but how did you get that?

do you need to convert the velocity?

no you don't because , when we apply the formula (v/c)^2 both v and c are in same units i.e m/s...............

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- #5

hmm im still not getting the right answer when i plug it in to my calculater..

- #6

DaveC426913

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Set the calculator aside, write it out on paper first.

- #7

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see the formula is t1 = t2 * { 1 - (v/c)^2 }^(1/2)

where t1 is time in space shuttle (at 2.4...velocity)

t2 is time measured on earth

c is velocity of light

v is velocity of space ship

The above formula is time dilation formula .......

now try it again

ya you could do it on paper too, its easy calculation.........

where t1 is time in space shuttle (at 2.4...velocity)

t2 is time measured on earth

c is velocity of light

v is velocity of space ship

The above formula is time dilation formula .......

now try it again

ya you could do it on paper too, its easy calculation.........

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- #8

Set the calculator aside, write it out on paper first.

okay so it would be something like

1.25/ (1-(2.4x10^8)2)^(.5)

which gives me a negative square root

- #9

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hmm im still not getting the right answer when i plug it in to my calculater..

The equation should be x= 1.25/{1-(v/c)^2}^(1/2) with (v/c) and not (c/v).

Use v= 2.40x10^8 m/s and c= 2.99792458x10^8 m/s and you should get the right answer.

- #10

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okay so it would be something like

1.25/ (1-(2.4x10^8)2)^(.5)

which gives me a negative square root

dude it is not v^2 .....but......it is v^2/c^2.........

where c=299792458 m/s and

v is 2.4*10^8 m/s

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- #11

okay i got ittt finally

thanks guyyys

thanks guyyys

- #12

DaveC426913

Gold Member

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- #13

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[email protected]

I am sorry for that mistake i.e replacing c by v...........

I am sorry for that mistake i.e replacing c by v...........

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