The position x, in meters, of an object moving along the x-axis is given as a function of time t, in seconds, x (t) = 0.0989t4 -0.153t³ +0.7531² +5.43t - 6.93 Find the object's acceleration at time t = 2.91 s.

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Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.