The 2-D Cartesian position vector r for a particle in motion is shown below in meters where t is in seconds: r =  7 t5 - 4 t4 + 8 t3  i   +   4 t3 + 5 t4 - 3 t5  j At time = 3 seconds, determine the magnitude of the acceleration vector in m/s/s.

Physics for Scientists and Engineers, Technology Update (No access codes included)
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ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: Motion In Two Dimensions
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The 2-D Cartesian position vector r for a particle in motion is shown below in meters where t is in seconds:

r =  7 t- 4 t+ 8 t3  i   +   4 t+ 5 t- 3 t5  j

At time = 3 seconds, determine the magnitude of the acceleration vector in m/s/s. 

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