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  4. A single conservative force F(x) acts on a particle that moves along the x-axis. The graph of the potential energy with x is given. At x=5 m, the particle has a kinetic energy of 50 J and its potential energy is related to position ' x ' as U=15+(x-3)2 Joule, where x is in meter. Then :

Q. A single conservative force acts on a particle that moves along the -axis. The graph of the potential energy with is given. At , the particle has a kinetic energy of and its potential energy is related to position ' ' as Joule, where is in meter. Then :

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