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The following is the distance-time table...

The following is the distance-time table of an object in motion:
`{:("Time in seconds", "Distance in metres"),( 0, 0),( 1, 1),( 2, 8),( 3, 27),( 4 ,64),( 5, 125),( 6 ,216 ),(7, 343 ):}`
(a) What conclusion can you draw about the acceleration? Is it constant, increasing, decreasing, or zero?
(b) What do you infer about the forces acting on the object?

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