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Newton's Laws 7: Fnet = m•a Assorted Problems

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Assignment Overview

Use the Newton's second law equation to solve the following problems.

 1. NL10Q8
Points: 0/2

Darrel Deval assumes the spread-eagle position during the first two minutes of his skydiving plunge. His 70.1-kg body eventually reached a terminal velocity of 58.0 m/s by the 2-minute mark.

  1. What is the net force on Darrel's body at this moment?

    Net Force

    N

  2. What is the force of air resistance on his 70.1-kg body?

    Air Resistance

    N

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 2. NL15Q5
Points: 0/3

A 4.06-kg bucket of water is raised upward from a well by a rope attached to the bucket. The upward acceleration of the bucket is 1.11 m/s/s. Determine …

  1. … the weight of the bucket.

    Weight

    N

  2. … the net force experienced by the bucket.

    Net Force

    N

  3. … the tension in the rope.

    Tension

    N

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 3. NL11Q1
Points: 0/4

Consider the free-body diagram for an object accelerating across a surface. The object has a mass of 4.13-kg. There is a forward thrust force of 42.2 N. The coefficient of friction between the object and the surface is 0.457. Determine the …

  1. … Fnorm experienced by the object.

    Normal Force

    N

  2. … Ffrict experienced by the object.

    Friction Force

    N

  3. … Fnet experienced by the object.

    Net Force

    N

  4. ... acceleration of the object.

    Acceleration

    m/s/s

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 4. NL11Q2
Points: 0/7

Amanda B. Reckenwyth is exerting a rightward force of 122.0 N in order to drag a 15.9-kg box of books across the floor at a constant speed of 0.26 m/s. Determine the ...

  1. ... force of gravity.

    Fgrav

    N

  2. ... normal force.

    Fnorm

    N

  3. ... applied force.

    Fapp

    N

  4. ... friction force.

    Ffrict

    N

  5. ... net force.

    Fnet

    N

  6. ... acceleration of the box.

    Acceleration

    m/s/s

  7. ... coefficient of friction (mu).

    mu

    (no unit)

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 5. NL11Q5
Points: 0/1

While decorating her apartment, Julie pushes a 600.0-N dresser across the floor by applying a 531.0-N horizontal force. The coefficient of friction between the dresser and the floor is 0.598. Determine the acceleration of the dresser.

  1. Acceleration

    m/s/s

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 6. NL11Q6
Points: 0/1

Alejandra is attempting to drag her 34.3-kg Golden Retriever across the wooden floor by applying a horizontal force. What force must she apply to move the dog with a constant speed of 0.70 m/s? The coefficient of friction between the dog and the floor is 0.832.

  1. Applied Force

    N

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