A small object with mass m = 2 kg is attached to the free end of an ideal spring with k = 10 N m⁻¹. The other end of the spring is connected to a fixed frictionless pivot located at the origin O as shown in the Figure. The relaxed length of the spring is 1 m. An unspecified force F carries the object at rest from point A to point B. At point B, the object has the speed 5 m s⁻¹. The work done by the force F is (Neglect gravity) :-
Physics · Work , Power and Energy · kinetic enegy and work engery theorem
A small object with mass m = 2 kg is attached to the free end of an ideal spring with k = 10 N m⁻¹. The other end of the spring is connected to a fixed frictionless pivot located at the origin O as shown in the Figure. The relaxed length of the spring is 1 m. An unspecified force F carries the object at rest from point A to point B. At point B, the object has the speed 5 m s⁻¹. The work done by the force F is (Neglect gravity) :-
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