1.

a) 240 J14. An object moving hornzontally with Kinetic energy of 800 J experiences a constant opposing force of100 N while moving from a to b (when aba) 700J2m). The energy of particle at b isb) 400 Jc) 600 Jd) 300 JVarsity Education Management Pvt. Ltd47

Answer»

In passing 2m path against force 100N the. particle will do work and lose KE by the amount 100×2=200 J

So energy of the particle at b will be

800-200=600J



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