Kinetic energy of a particle on the surface of earth is `E_(0)` and the potential energy is `- 2E_(0)`. (a) Will the particle escape to infinity ? (ii) What is the value of potential energy where speed of the particle becomes zero?
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The correct Answer is:
A, B
(a) Total mechanical energy `= E_(0) - 2E_(0) = - E_(0)`. Since, it is nagative, it will not escape to infinity. (b) `E_(i) = E_(f) rArr E_(0) - 2E_(0) = 0 + U rArr U = - E_(0)`
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