4. Two tugs are pulling a large ocean liner out to sea on ropes. Tug A exerts a force of 51 kN at an angle of 30° to the forward direction and tug B exerts a force of 68 kN at angle of 60⁰. LINER A. 85 KN 30⁰ 60⁰ TUG A (51 kN) FORWARD DIRECTION TUG B (68 KN) The resultant force on the liner due to the tugs is about: B. 92 KN C. 119 KN D. 123 KN

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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!