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Chapter 3, image, 1Picture - Coggle Diagram
Chapter 3
3.1 Vectors & Scalars
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Example of Vectors quantities - displacement , force , velocity , momentum
Example of Scalars quantities - mass , time , temperature
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3.7 Projectile Motion
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How to solve
1.Read the problem carefully, and choose the object(s) you are going to analyze.
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- Choose an origin and a coordinate system.
- Decide on the time interval; this is the same in both directions, and includes only the time the object is moving with constant acceleration g.
- Examine the x and y motions separately
- List known and unknown quantities. Remember that Vx never changes, and that Vy = 0 at the highest point
- Plan how you will proceed. Use the appropriate equations; you may have to combine some of them
3.5 Unit Vectors
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can be written by its componnent:
3.2 Addition of vectors
1-Dimension addition of vectors
2-D Addition of vectors a^2 = ax^2 + ay^2
3.8 Relative Velocity
Similar in two dimensions except that we must add and subtract velocities as vectors. Each velocity is labeled first with the object, and second with the reference frame in which it has this velocity.
Eg:
V(WS) is the velocity of the water in the shore frame, V(BS) is the velocity of the boat in the shore frame, and V(BW) is the velocity of the boat in the water frame. The relationship between the three velocities is: V(BS) = V(BW) + V(WS)
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