At t=0, an object moves with an acceleration a--2t³i+7t²j. (a) Determine the magnitude of the particle's acceleration at t=2.0s. 32.24 ✓ m/s² (b) Determine the direction of the particle at t-2.0s, if v(t-0)-14i+2j. 73.81 degrees from +x-axis (c) Determine the magnitude of the particle's displacement at t-2.0s. 28.28 m (d) Calculate the direction of the particle as t→ 00. degrees from +x-axis

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Chapter1: Units, Trigonometry. And Vectors
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At t=0, an object moves with an acceleration a--2t³i+7t²j.
(a) Determine the magnitude of the particle's acceleration at t=2.0s.
32.24
✓ m/s²
(b) Determine the direction of the particle at t-2.0s, if v(t-0)-14i+2j.
73.81
degrees from +x-axis
(c) Determine the magnitude of the particle's displacement at t-2.0s.
28.28
m
(d) Calculate the direction of the particle as t→ 00.
degrees from +x-axis
Transcribed Image Text:At t=0, an object moves with an acceleration a--2t³i+7t²j. (a) Determine the magnitude of the particle's acceleration at t=2.0s. 32.24 ✓ m/s² (b) Determine the direction of the particle at t-2.0s, if v(t-0)-14i+2j. 73.81 degrees from +x-axis (c) Determine the magnitude of the particle's displacement at t-2.0s. 28.28 m (d) Calculate the direction of the particle as t→ 00. degrees from +x-axis
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