71st BPSC Prelims (2025), question 122

🔬 Science & Technology

  1. A truck (7 tons) starts from rest with constant acceleration, covering 400m in 20s. What force acts on it?

    1. 11000 Newtons
    2. 12000 Newtons
    3. 13000 Newtons
    4. 14000 Newtons
    Show answer

    Answer: B — 12000 Newtons

    Using a=2s/t² and F=ma with the given figures, the official key gives 12000 N.

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