The acceleration of the particle at 3s is [tex]a = 6 \beta [/tex]
[tex]v = \alpha + \beta {t}^{2} [/tex]
[tex]a = \frac{dv}{dt} \\ v = \alpha + \beta {t}^{2} \\ \frac{dv}{dt} = 0 + 2 \beta t \\ [/tex]
if Time is given as 3s
therefore, Acceleration is
[tex]a = 2 \beta t \\ a = 2 \beta 3 \\ a = 2 \times \beta \times 3 \\ a = 6 \beta [/tex]
Acceleration is
[tex]a = 6 \beta [/tex]
This is the change in velocity with respect to time.
Velocity is a vector quantity that denotes the rate of change of position with respect to time, or a speed with the directional component.
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