A skydiver of mass 87 kg falls straight down. If air resistance exerts 355 N of force on him as he falls, what is the net force on the skydi

Question

A skydiver of mass 87 kg falls straight down. If air resistance exerts 355 N of force on him as he falls, what is the net force on the skydiver?

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MichaelMet 4 years 2021-08-23T03:16:06+00:00 2 Answers 36 views 0

Answers ( )

  1. yenoanh
    0
    2021-08-23T03:17:30+00:00
    Reply

    Answer:

    497.6 N

    Explanation:

    From the question,

    The net force on the skydiver = weight of the skydiver- the resistive force of air

    F’ = W-F…………………. Equation 1

    Where W = weight of the skydiver, F = resistive force of air.

    But,

    W = mg……………. Equation 2

    Where m = mass of the skydiver, g = acceleration due to gravity.

    Substitute equation 2 into equation 1

    F’ = mg-F………… Equation 3

    Given: m = 87 kg, F = 355 N, g = 9.8 m/s²

    Substitute these values into equation 3

    F’ = 87(9.8)-355

    F’ = 852.6-355

    F’ = 487.6 N

  2. Neala
    0
    2021-08-23T03:17:57+00:00
    Reply

    Answer:

    498 N down

    Explanation:

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