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Quiz tomorrow/ Friday Homework: Students are to study their notebooks for quiz tomorrow Do Now: What is the equation for Force? Aim: SWBAT review the Newton’s laws to prepare for the quiz tomorrow by answering 85% of the review questions correctly
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Chapter 2.6 review Define the following terms.
Acceleration, frame of reference, friction, gravity, and inertia, Newton’s 1st law, Newton’s 2nd law, Newton’s 3rd law, Center of mass
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Practice problems Shelly pushes a 75kg shopping cart through Walmart with an acceleration of 15m/s/s. What is the force she is applying to the cart? A mover pushes a load of boxes with a force of 99N at a rate of 10m/s/s, what is the mass of the box?
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If 15000kg truck accelerates at 2m/s/s/, what is the force on the car?
If your mass is 80kg and accelerates at a rate of 5m/s/s, what is the net force that will be applied to punching bag? An object in motion_____, an object at rest____ unless acted upon by a _______
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Practice Problems Continue
List 3 equations of Newton’s 2nd law What is value given to gravity? A book that is resting on a shelf 2.0m above the floor has a weight of 15N. The force the shelf exerts upon the book must be______
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Practice Problems Continue
A man is attempting to push a chair across the floor with constant speed by exerting a force of 50N. When will the chair exert a force of 50N on the man a. only if the man and the chair are at rest b. only if the man and the chair are accelerating c. all of the above
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