A mover pushes a 255 kg piano with a 77.5 N force to the left, while a second mover pulls the piano 48.7 N to the left. Wh

Question

A mover pushes a 255 kg piano
with a 77.5 N force to the left, while
a second mover pulls the piano
48.7 N to the left. What is the
acceleration of the piano?
(Watch your minus signs.)
(Unit = m/s2)

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Thiên Di 4 years 2021-08-05T17:27:03+00:00 1 Answers 41 views 0

Answers ( )

  1. nguyetanh
    0
    2021-08-05T17:28:15+00:00
    Reply

    Answer:

    0.495ms^{-2

    Explanation:

    According to the newton’s second law of motion we can apply F=ma hear

    Force = mass * acceleration

    (assume the piano is moving left side )

    ←F = ma

    F(pull) + F (push) = M * a\\77.5 + 48.7 = 255*a\\a = 0.495ms^{-2}

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