Time is directed from present to future.is it a vector quantity

  • Thread starter Thread starter angi-18
  • Start date Start date
  • Tags Tags
    Time Vector
AI Thread Summary
Time is not considered a vector quantity because it does not have a direction in the same way that vectors do. It is always perceived as moving from the present to the future, but this does not imply a directional quality. Mathematically, time does not satisfy the properties of vector addition; instead, it involves scalar addition of individual time intervals. Therefore, time is classified as a scalar quantity rather than a vector. The discussion emphasizes the fundamental nature of time as unidirectional and scalar.
angi-18
Messages
9
Reaction score
0
time is directed from present to future.is it a vector quantity ?explain it pleasezzz...
 
Physics news on Phys.org


I don't think of time as a vector quantity, neither do I think of it as being directed anywhere. Good question though.
 


Another way to think of it is that time is always in one direction, so there is no need to mention a direction for it. Or you could look at it mathematically, for time to be a vector it should hold under vector addition, but when your adding time "vectors" its really just the addition of individual times. So its just scalar addition and hence a scalar quantity.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

Can A Vector Have Components Of Say Y or Z in the X-Hat Direction?
Replies
8
Views
901
Suvat vector versus the scalar form
Replies
44
Views
4K
Fundamental quantities and derived quantities
Replies
5
Views
595
Is work a vector quantity in physics?
Replies
35
Views
4K
Understanding Direction of Unit Vectors r roof & phi roof
Replies
11
Views
2K
Writing a vector parallel and normal to a unit vector ##\hat n##
Replies
26
Views
1K
Relation between the velocity vector and the acceleration vector of an object
Replies
1
Views
695
Electric field vector equation: Finding the neutral point for two charges
Replies
35
Views
2K
Vector is a function of its position or not?
Replies
16
Views
1K
Circular motion doubt: Angular velocity vector for general planar motion about a point in the plane
Replies
6
Views
750

Hot Threads

Recent Insights

Back
Top