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3.2 , motion in plane — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics3.2 , motion in plane1 Mark
MCQ
A man is running with constant speed along a circular path of radius $2 \sqrt 2\, m$. He completes $1$ round in $10\, second$. Find instantaneous speed at $2.5 \,sec.$
  • A
    $\frac{\sqrt 2 \pi}{5} m/s$
  • ✓
    $\frac{2 \sqrt 2 \pi}{5} m/s$
  • C
    $\frac{2 \sqrt 3 \pi}{5} m/s$
  • D
    $\frac{5 \sqrt 2 \pi}{5} m/s$
✓

Answer

Correct option: B.
$\frac{2 \sqrt 2 \pi}{5} m/s$
b

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