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Olympiad workbook
Exam
Olympiad workbook
Subject
NSEP
Chapter
Work, Power and Energy

Olympiad workbook · NSEP · Work, Power and Energy

A body of mass 1.0 kg moves in X-Y plane under the influence of a...

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=2x+3y\mathrm{U}=2 x+3 y where (x,y)(x, y) denote the coordinates of the body. The body is at rest at (2,−4)(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 213 m/s2 \sqrt{13} \mathrm{~m} / \mathrm{s} at time t=2 st=2 \mathrm{~s}.

Correct answer

D. has a speed of 213 m/s2 \sqrt{13} \mathrm{~m} / \mathrm{s} at time t=2 st=2 \mathrm{~s}.

Step-by-step solution

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