The acceleration $a$ $m s^{-2}$, of a moving particle is given by $a = 2t - 3t^2$ where \

Question

The acceleration $a$ $m s^{-2}$, of a moving particle is given by $a = 2t - 3t^2$ where $t$ is the time in seconds. Find the value of $t$ when the particle has acceleration $0.05$ m s$^{-2}$, has acceleration $-3$ m s$^{-2}$.

Accepted Answer

(a) $t=\dfrac{10\pm\sqrt{85}}{30}\text{ s}$; (b) $t=\dfrac{1+\sqrt{10}}3\text{ s}$

Kinematics - Motion Conditions, Rest and Direction

Kinematics - Motion Conditions, Rest and Direction

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