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Cool goIITian

Joined:	11 Dec 2011
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11 Dec 2011 19:23:45 IST

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time is 4th dimension of universe .....Is time a vector quantity .......?....If not ...why

Physics

time is 4th dimension of universe .....Is time a vector quantity .......?....If not ...why

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mahip

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Joined: 10 Dec 2011

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11 Dec 2011 19:52:25 IST

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time is not a vector.....it doesnot has direction,,,,,,time, if we see it in a co-ordinated way,,it gives us the coordinate where the event is taking place.

madhusudan sharma

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12 Dec 2011 17:11:51 IST

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time is a scalar quantity because it has a specific direction from past to present and then future.

Sahil Parashar

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17 Dec 2011 20:14:35 IST

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if u think it from quantum mechanics point of view time can also be treated as a vector whose direction as well as magnitude both may vary

edison

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Joined: 19 Oct 2006

Posts: 7537

14 Feb 2012 11:00:22 IST

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Suppose time is a vector quantity.Then it should obey vector law of addition.As you say it has only one direction,The resultant will always be an algebraic addition of the individual times.

So by this property it is a scalar.As a vector needs the direction to be specified for its complete information.But as time is always going forward,there is no need to mention its direction.Hence time fails to satisfy one of the basic properties of a vector.

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