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Engineering

If the velocity-time graph has the shape AMB, what would be the shape of the corresponding acceleration-time graph ? [Diagram: Top graph shows velocity (V) vs time (t). It's a triangle, starting at V=A (positive), linearly decreasing to V=0 at M, then linearly decreasing to V=B (negative) at the same absolute value as A, then linearly increasing to V=0. The curve AMB is a V-shape. Below it are four options for acceleration (a) vs time (t) graphs.]

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