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For which of the following position-time (x-t) graphs is acceleration zero?

Physics

ScanSolve AI Answer

Step-by-step solution

5 steps
  1. Acceleration is zero when velocity is constant.

    In an xx-tt graph, constant velocity appears as a straight line (non-zero slope).

    Observe the graphs: Graph (A) is a straight line (constant slope), so acceleration is zero throughout.

    Graphs (B), (C), (D) are curved or piecewise, indicating changing velocity.

    Answer for Q12: (A)

  2. Maximum velocity from vv-tt graph is the highest vv value (peak ordinate).

  3. Maximum displacement is the maximum area under vv-tt curve up to that point (max⁡∫v dt\max \int v \, dt).

  4. Maximum acceleration is the maximum slope of vv-tt graph (max⁡ΔvΔt\max \frac{\Delta v}{\Delta t}).

  5. Average displacement is total area under curve divided by time interval (1T∫0Tv dt\frac{1}{T} \int_0^T v \, dt).

    (Specific values require graph scales; read from given vv-tt graphs for A, B, C, D.)

    The area under vv-tt graph represents displacement (∫v dt=Δx\int v \, dt = \Delta x), not velocity or acceleration.

    Velocity = ordinate value. Acceleration = slope.

    neither (A) nor (B); it is displacement

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