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

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics3.2 , motion in plane1 Mark
MCQ
The average acceleration vector for a particle having a uniform circular motion is
  • A
    A constant vector of magnitude $\frac{{{v^2}}}{r}$
  • B
    A vector of magnitude $\frac{{{v^2}}}{r}$ directed normal to the plane of the given uniform circular motion
  • C
    Equal to the instantaneous acceleration vector at the start of the motion
  • ✓
    A null vector
✓

Answer

Correct option: D.
A null vector
d
(d)In complete revolution change in velocity becomes zero so average acceleration will be zero.

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