Practice question

MCQ

Question

A particle is moving in a straight line and its distance x from a fixed point on the line at any time t seconds is given by, x = t⁴/12 – 2t³/3 + 3t²/2 + t + 15. What is the minimum velocity?

Options

Choose one · Correct answer highlighted

1 cm/sec Correct 2 cm/sec 3 cm/sec 4 cm/sec

Explanation

Simply put, we verify 1 cm/sec by full calculation: use standard identity, substitute, simplify step by step to reach 1 cm/sec.

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