Can velocity be positive with a negative displacement? Explain please :)
1 Answer
Yes see explanation
Explanation:
There are two types of quantities, and it is important to know the difference;
1) Scalar quantities. These have magnitude ie. size only .
For example: temperature.
2) Vector quantities, these have BOTH size and direction.
to show the difference:
Consider an object moving North
its speed is
but its velocity of
Now distance is as scalar, but displacement is a vector
so if an object starts at the origin and moves
it has moved a distance of
but its displacement is
if we use vector notation:
the object goes:
So displacement can be negative.
at this point the object can move with a velocity of, say,
so an object can have positive velocity and negative displacement
In fact the constant acceleration equations can be written into vector form, thus taking all of this into account.
