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The Position Function of a Particle Is Given By s=t3−10.5t2−2t,t≤0s = t ^ { 3 } - 10.5 t ^ { 2 } - 2 t , t \leq 0

Question 67

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The position function of a particle is given by s=t3−10.5t2−2t,t≤0s = t ^ { 3 } - 10.5 t ^ { 2 } - 2 t , t \leq 0 When does the particle reach a velocity of 22 m/s22 \mathrm {~m} / \mathrm { s } ?

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