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Motion in One Dimension — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsMotion in One Dimension1 Mark
MCQ
A train moves from one station to another in 2 hours time. Its speed-time graph during this motion is shown in the figure. The maximum acceleration during the journey is
Image
  • A
    $140 km h$
  • ✓
    $160 km h$
  • C
    $100 km h$
  • D
    $120 km h$
✓

Answer

Correct option: B.
$160 km h$
(b) Maximum acceleration will be represented by $C D$ partofthegraphAcceleration(=\frac{dv}{d t}=\frac{(60-20)}{0.25}=160 \mathrm{~km} / \mathrm{h}^2$

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