A body change its position according to the relation x=2+6t
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Displacement x = 2 - 5 t + 6 t²
Velocity dx/dt = 0 - 5 + 6 × 2 t = 12 t - 5
Acceleration d² x/d t² = 12
Since acceleration has no dependence on time, so it is constant and its value is +12 unit. This is the initial acceleration as well.
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