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Physics, 10.11.2019 02:31 emily0259

The six equations below tell us the position in meters as a function of time in seconds for six objects that are moving along a straight line. as the equations show, these objects vary in their initial positions, initial velocities, and accelerations. (a) x(t) = −7 + 9t − 2t2 (b) x(t) = +4 + 9t + t2 (c) x(t) = +3 - 7t - 2t2 (d) x(t) = -4 + 3t - 4t2 (e) x(t) = -1 - 9t - 2t2 (f) x(t) = -7 + t + 2t2
a) which of these objects have a net force acting on them? b) rank the objects based on the magnitude of the net force on them.

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