Problem 14: A particle of mass 1.39 kg begins at rest and is then subject to a force in the positive x direction that changes with time as given by the following function: F= mg[1-e31, where g is the acceleration due to gravity. 123 Av= Part (a) Determine the change in the velocity Av of the particle between tw0 and 13 seconds. m/s Part (b) Determine the change in x-coordinate of the particle Ax between r=0 and 1=1.3 seconds. G
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