The force of friction acting on a sliding crate is 223 N. How much force must be applied to main- tain a constant velocity?

Question

The force of friction acting on a sliding crate is 223 N.
How much force must be applied to main- tain a constant velocity?

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Thành Đạt 6 months 2021-07-22T02:13:02+00:00 1 Answers 5 views 0

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    0
    2021-07-22T02:14:12+00:00

    Answer:

    Friction Opposes Motion of an Object.

    Now

    To get the Net force that Moves an Object and causes acceleration….You subtract the Frictional force

    Net force = Pushing Force – Frictional Force

    Recall

    Net Force; F=Ma

    Ma = P – Fr

    Now the question asked for How Much force Must be applied to Maintain a Constant velocity.

    In a Constant Velocity Motion… Acceleration do not change… Its Zero

    So Putting this into the formula above

    M(0) = P – Fr

    0=P – Fr

    Fr = P.

    This means

    That The force needed to keep this object Moving at Constant Velocity Must be equal to its Frictional Force

    Since Frictional Force; Fr =223N

    The Applied Force(Pushing Force) Must be equal to 223N too.

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