Two crewmen pull a raft through a lock, as shown in the figure below. One crewman pulls with a force of F,- 129 N at an angle of 6, - 34.7° relative to the forward direction of the raft. The second crewman, on the opposite side of the lock, pulls at an angle of 6 2- 46.6°. With what force should the second

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!