If the 50-kg crate starts from rest and achieves a velocity of v = 4 m/s when it travels a distance of 5 m to the right, determine the

Question

If the 50-kg crate starts from rest and achieves a velocity of v = 4 m/s
when it travels a distance of 5 m to the right, determine the magnitude of
force P acting on the crate. The coefficient of kinetic friction between the
crate and the ground is μk = 0.3.

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Bình An 5 years 2021-08-28T13:43:03+00:00 1 Answers 166 views 0

Answers ( )

  1. thongdat2
    0
    2021-08-28T13:44:46+00:00
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    Answer:

    P = 227 N

    Explanation:

    Assuming the crate is on horizontal ground and subject to a horizontal force.

    F = ma

    P – μmg = ma

    P = m(a + μg)

    P = m(v²/2s + μg)

    P = 50(4²/(2(5))+ 0.3(9.8))

    P = 227 N

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