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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Question 2
2.
what is the farthest distance the walker gets from his starting point?
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Question 3
3.
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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Question 4
4.
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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Question 5
5.
which of the following acceleration graph matches the above velocity graph?
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Question 6
6.
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Question 7
7.
Which of these is the best definition of inertia?
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Question 8
8.
Mass is simply a measurement of inertia. What is the definition of mass?
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Question 9
9.
Which of the following is a good example of Newton's first law of motion?
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Question 10
10.
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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Question 11
11.
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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Question 12
12.
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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Question 13
13.
What is the difference between weight and mass?
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Question 14
14.
true/false - and object with mass can have no weight
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Question 15
15.
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Question 16
16.
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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Question 17
17.
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?