Unformatted text preview: v = 12 t ˆ i + 36 t 2 ˆ j3 t 2 ˆ k m / s The acceleration is the rate of change of velocity and hence a = dv dt = 12 ˆ i72 t 3 ˆ j6 t ˆ k m / s 2 Substitute t = 2 s to Fnd the acceleration at that time a  t = 2 = 12 ˆ i72 2 3 ˆ j6(2) ˆ k m / s 2 = 12 ˆ i9 ˆ j12 ˆ k m / s 2...
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 Spring '10
 richard
 Acceleration, Velocity, dt, velocity vector, displacement vector, Introductory Dynamics

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