Velocity - Time Graphs.
The above graph shows
that the objects velocity is
decreasing as time goes by.
This is negative
acceleration.
The straight line shows that it is
constant negative acceleration.
The slope of the line shows
(i) the acceleration is negative because the
line slopes downwards
(ii) how fast the negative acceleration
is.
The curve in the above graph
shows that the acceleration is
not constant.
It is changing
acceleration.
Headings Forces and
Motion Search Questions 
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