What is the key external force that allows a man to push a wheelbarrow

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What is the key external force that allows a man to push a wheelbarrow

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Thông Đạt 5 months 2021-08-15T03:10:03+00:00 1 Answers 13 views 0

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    2021-08-15T03:11:43+00:00

    Answer:

    Friction

    Explanation:

    The key and most important external forces that allows a man to push a wheelbarrow is frictional force.

    Frictional force is a force that opposes motion and will bring it to a halt.

    The reason why motion is possible is due to frictional force.

    Without friction, a body will move and continue in motion infinitely. No one will be able to control motion.

    • Therefore, frictional force is an external force that will allow a man to push a wheelbarrow.

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