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16 January, 16:25

Which option accurately describes an unbalanced force?

Each cement block supports a 2-N force, but when the foundation is built in a staggered pattern, it can support 2,000 N.

Three rows of cement blocks form a foundation for a house, and the house rests on this foundation.

A 2-N force presses down on the cement block at the same time as a 1.5-N force presses up on the cement block.

The force of a house pressing down on its foundation of cement blocks is 3,000 N.

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Answers (2)
  1. 16 January, 19:02
    0
    A 2-N force presses down on the cement block at the same time as a 1.5-N force presses up on the cement block.

    Explanation:

    Option 1: each cement supports equal weight of downward force even when the building pattern changes, they support more weight. This implies more cement more weight they can support.

    Option 2: conventional house foundation is formed by four rows of cement block, in this case there is Three rows of cement blocks. since the house rest on it, all forces are balanced.

    Option 3: downward force on a block is 2N while the upward force is 1.5N. Therefore, the downward and upward force on the cement block are not equal, which correctly describes an unbalanced force.

    Option 4: the downward force on a foundation is 3,000N and the upward force is not known. Therefore, we cannot asertain whether the force is balanced or unbalanced
  2. 16 January, 19:37
    0
    each cement block supports a 2n force
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