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11 January, 03:09

Which of the following describes an object in static equilibrium?

A. A platypus lies motionless on the sand.

B. A tuna speeds up from 2 m/s to 3 m/s

C. A dolphin jumps out of the water

D. A zebra shark swims at a constant speed of 8 m/s

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Answers (1)
  1. 11 January, 03:24
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    Option A is the correct answer.

    Explanation:

    Static equilibrium means an object object is at rest and is in a state of equilibrium.

    If we examine options B, C and D we can see that, in each case object is in a state of motion.

    B) Tuna is in a motion.

    C) Dolphin is a motion.

    D) Zebra is a motion

    In option A platypus lies motionless on the sand, which is an example of static equilibrium.

    so, option A is the correct answer.
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