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2. motion in straight line — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics2. motion in straight line1 Mark
MCQ
Velocity-displacement graph of a particle moving in a straight line is as shown in figure
  • A
    magnitude of acceleration of particle is constant
  • B
    magnitude of acceleration of particle is increasing
  • ✓
    acceleration versus displacement graph is straight line
  • D
    acceleration versus displacement graph is parabola
✓

Answer

Correct option: C.
acceleration versus displacement graph is straight line
c
$\mathrm{V}=-\mathrm{mS}+\mathrm{V}_{0}$

$\left(\frac{d V}{d S}\right)=-m$

$a=V\left(\frac{d V}{d S}\right)=\left[-m S+V_{0}\right][-m]$

$\mathrm{a}=\mathrm{m}^{2} \mathrm{S}-\mathrm{m} \mathrm{V}_{0}$

This is eqn. of straight line.

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