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Olympiad workbookNSEPWork, Power and Energy

A body of mass 1.0 kg moves in X-Y plane under the influence of a conservative force. Its potential energy is given by U =2 x+3 y where (x, y) denote the coordinates of the body. The body is at rest at (2,-4) initially. All the quantities have SI units. Therefore, the body

Options

  1. Amoves along a parabolic path.
  2. Bmoves with a constant acceleration.
  3. Cnever crosses the X axis.
  4. Dhas a speed of 2 13 ~m / s at time t=2 ~s .

Correct answer

D. has a speed of 2 13 ~m / s at time t=2 ~s .

Step-by-step solution

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