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6 August, 11:05

The moment an object in freefall hits the ground, its final velocity will be: a. Zero

b. Greater than the initial

c. Less than the initial

d. Constant

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Answers (1)
  1. 6 August, 11:21
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    Option b

    Explanation:

    An object is said to fall freely when there is no force acting on the object other than the gravitational force. Thus the acceleration of the object is solely due to gravity and no other acceleration acts on the body.

    Also the initial velocity of the body in free fall is zero and hence less than the final velocity.

    As the body falls down closer to earth, it experiences more gravitational pull and the velocity increases as it falls down and the moment it touches the ground the period of free fall ends at that instant.

    Thus the final velocity of an object in free fall is not zero because the final velocity is the velocity before coming in contact with the ground.
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