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⚛️ Physics  ·  Motion in a Straight Line  ·  NEET & JEE

A velocity-time graph is a straight line from the origin (0, 0) to (5 s, 20 m s<sup>-1</sup>). The distance covered in these 5 s is:

Answer: 50 m.

  • A 50 m
  • B 25 m
  • C 100 m
  • D 40 m

Correct answer: A. 50 m

Explanation: Distance equals the area under the graph = (1/2) × base × height = (1/2) × 5 × 20 = 50 m.

tvuvTΔtΔvslope = aarea = displacement (s)

On a velocity-time graph for uniform acceleration, the slope of the line gives the acceleration and the shaded area under the line gives the displacement.

Concept context

Equations of motion, projectile motion, relative velocity. Foundation of all mechanics.

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