1) I still dont understand the difference bewteen displacement
and distance.
if the point of orgin is x.
y-----------------------------x-----------------------------z
car moves from x to z then to y. Which part of the displacement
is negative?
Next, if you talk about car moving ard in circles. will the
displacement be negative?
lol ..
how do you convert picogram^2 to kg^2
Do you need to care about the square(^2) or just simply convert
picogram into kg.
next: a machine shoots a ball vertically upwards. If the ball
takes 3s to reach the highest point, what is the distance travelled
by the ball when t=1?
1) Displacement is a vector, means has magnitude and
direction
Distance is a scalar, means only has magnitude.
Whether y or z is positive or negative displacement depends on
where you are pointing as positive. You have to choose a
direction.
if a car moves in circles, u hv both vertical and horizontal
displacements. Again, it depends from which position you want to
define as positive or negative
