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BITSAT 2020
Exam
BITSAT
Year
2020
Subject
Physics
Chapter
Units and Dimensions

BITSAT 2020 · Physics · Units and Dimensions

The engine of a truck moving along a straight road delivers...

The engine of a truck moving along a straight road delivers constant power. The distance travelled by the truck in time tt is proportional to

Options

  1. Att
  2. Bt2t^{2}
  3. Ct\sqrt{\mathrm{t}}
  4. Dt3/2t^{3 / 2}

Correct answer

D. t3/2t^{3 / 2}

Step-by-step solution

mv2t=ms2\mathrmt3\frac{\mathrm{mv}^{2}}{\mathrm{t}}=\frac{\mathrm{ms}^{2}}{\mathrmt^{3}} since both P\mathrm{P} and m\mathrm{m} are constants ∴\mathrms2\mathrmt3=\therefore \frac{\mathrms^{2}}{\mathrmt^{3}}= constant
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