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Grade 12AIPMT

A PARTICLE IS RELEASED FROM REST AT ORIGIN IT MOVES UNDER THE INFLUCENCE OF POTENTIAL FIELD U = x2 - 3x. ITS KINETIC ENERGY AT x =2 IS WHAT?

Profile image of RAGINI SEIWAL
8 Years agoGrade 12
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1 Answer

Profile image of Eshan
8 Years ago
Dear student,

Potential at x=0 isU_1=0J
Potential at x=2 isU_2=2^2J-3(2)J=-2J

From conservation of energy, loss in potential energy=gain in kinetic energy
Since initally kinetic energy is zero,

final kinetic energy=2J