How does net force determine the acceleration of an object? How is net force determined? Provide an example to illustrate how net force is determined.

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At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

What is the coefficient of kinetic friction μk between the block and the tabletop?