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The potential energy (in joules) of a particle of mass 1 kg moving in a plane is given by U = 3x + 4y, the position coordinates of the point being x and y, meausured in metres. If the particle is at rest at (6, 4); then its acceleration is of magnitude 5 m/s2 its speed when it crosses the y-axis is 10 m/s it crosses the y-axis (x = 0) at y = 4 it moves in a straight line passing through the origin (0,0) Activate Windows Go to Settings to activate w

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