Practice question
Question
A particle starts from rest with an acceleration of (4i^+3j^)m/s2. What is its displacement magnitude after 2s?
Explanation
Displacement r=12at2 (since v0=0). As per NCERT Chapter 3, equations v=u+at, s=ut+½at², v²=u²+2as describe uniformly accelerated motion. Applying correct signs and units gives 10 m as the result, so option D is correct.
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