S1W6 Newton's first two laws

Last updated 3 months ago
18 questions
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1

This is a position vs time graph. is the man walking faster or slower in the green section compared to the red section?

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what is the farthest distance the walker gets from his starting point?

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A clown is throwing a ball up and down on a railroad platform moving through town. Which of the following is the difference between the frame of reference of someone on the car, vs someone on the ground?

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Plug and chug time. You are on earth and you toss a ball up in the air with the initial velocity of 4 m/s. The ball starts 1 meter from the ground. How long does it take to hit the ground. given the following equation, what do you know?

1 m
4 m/s
-9.8 m/s^2
9.8 m/s^2
5 seconds
3 m
0 m
Variable we are looking for
a
v0
x0
time when it hits
position when it hits
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which of the following acceleration graph matches the above velocity graph?

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Which of these is the best definition of inertia?

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Mass is simply a measurement of inertia. What is the definition of mass?

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Which of the following is a good example of Newton's first law of motion?

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Some people (such as me) will state newton's first law as a "unbalanced" external force rather than a "net" force. What does unbalanced mean here?

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Read in your physics book the following 56-62, the sections on Newton's first law, mass, and newtons second law of motion. the first two sections should re-ieterate the last video. Focus on the section on the second law. do you have any questions?

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If an object has no acceleration, does that mean there are no forces on the object? explain why or why not?

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What is the difference between weight and mass?

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true/false - and object with mass can have no weight

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assume a rocket had a constant acceleration of 0.01m/s^2, Using v=at, what is the velocity of that rockets after 10 days?

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A 400 kg bear is grasping a vertical tree slides down at a constant velocity. What is the friction force that acts on the bear?

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