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Motion in a Straight Line — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsMotion in a Straight Line1 Mark
MCQ
The body will speed up if ___________.
  • A
    Velocity and acceleration are in same direction.
  • B
    Velocity and acceleration are in opposite direction.
  • C
    Velocity and acceleration are in perpendicular direction.
  • D
    None of these.
✓

Answer

  1. Velocity and acceleration are in same direction.

Explanation:

A body will speed up if both velocity and acceleration are in same direction. If they are in opposite directions it results in slowing down the motion. And if they are perpendicular then there will be no effect on magnitude of velocity.

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