A car with an initial speed of accelerates at for . How far does it travel (in m)?

Answer and explanation

Correct answer: C. 90

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  1. Step 1: Under uniform acceleration, displacement is given by the kinematic relation .
  2. Step 2: Insert the given values , , and : .
  3. Step 3: Evaluating the arithmetic gives .
Answer
90.
Why not the others: '36' calculates only the distance at initial velocity (), omitting the acceleration displacement; '96' is an arithmetic error in applying ; '144' omits the factor of on the acceleration term, calculating .

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