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JIPMER 2008
Exam
JIPMER
Year
2008
Subject
Physics
Chapter
Work, Power and Energy

JIPMER 2008 · Physics · Work, Power and Energy

The area of the acceleration-displacement curve of a body gives

The area of the acceleration-displacement curve of a body gives

Options

  1. Aimpulse
  2. Bchange in momentum per unit mass
  3. Cchange in KE per unit mass
  4. Dtotal change in energy

Correct answer

C. change in KE per unit mass

Step-by-step solution

Area of acceleration-displacement curve gives change in KE per unit mass. 12m(v2−u2)=Fs=mdvdt×s∴ Change in KE  Mass =dvdt×s\frac{1}{2} m\left(v^2-u^2\right)=F s=\frac{m d v}{d t} \times s \therefore \quad \frac{\text{ Change in KE }}{\text{ Mass }}=\frac{d v}{d t} \times s
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