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Q. A 90 kg water skier floating in a lake is pulled from rest to a speed of 12 m/s in a distance of 30 m. What is the net force exerted on the skier, assuming his acceleration is constant?

Q. A particle starts from the origin at t = 0 with an initial velocity of 5.1 m/s along the positive x axis. If the acceleration is (-2.9i + 4.6j)m/s^2, determine the velocity and position of the particle asthe moment it reaches it's maximum x coordinate.

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