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Physics · MOTION IN A STRAIGHT LINE

हिन्दी

A car starting with an initial velocity \( v_0 = 5\text{ m s}^{-1} \) accelerates uniformly at \( a = 3\text{ m s}^{-2} \) along a straight road. What is its velocity after a time interval \( t = 6\text{ s} \)?

  1. \( 23\text{ m s}^{-1} \)
  2. \( 28\text{ m s}^{-1} \)
  3. \( 18\text{ m s}^{-1} \)
  4. \( 13\text{ m s}^{-1} \)

Correct answer · Option 1

\( 23\text{ m s}^{-1} \)

Explanation

Using the kinematic relation \( v = v_0 + at \), we get \( v = 5 + 3 \times 6 = 5 + 18 = 23\text{ m s}^{-1} \).
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