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7 October, 21:23

The impact of a truck colliding at 16 km/h with a concrete pillar caused the

bumper to indent only 7.4 cm. The truck stopped. Determine the acceleration of the

truck during the collision.

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Answers (1)
  1. 7 October, 22:17
    0
    We calculate as follows:

    Indent = 7.4 cm = 0.074 meters

    Assuming uniform acceleration, the average speed during the impact = 16/2 = 8 km/hr

    d = r*t

    t = d/r = 0.074/8 = 0.00925 hr

    a = 16 / 0.00925 = 1729.73 km/hr^2
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