Question

A body change its position according to the relation x=2+6t

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Answer 1

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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