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Background
The teacher doesn't teach we just do activities and have whole chapters worth of 20 mini assignments due every few days. Yes I did read the book.
1. Homework Statement
Determine the signs (positive or negative) of the position, velocity, and acceleration for the particle in
FIGURE Q1.6, FiGURE Q1.7 and FIGURE 1.8:
Figure 1.6
Figure 1.7 and Figure 1.8
2. Relevant equations
x=x(t) distance or position
__dx
v=  velocity
__dt
__dv_____d^(2)x
a=  or  acceleration
__dt_____dt^(2)
Ignore this "__" it is a space this doesn't accept spaces like some languages do...
For 1.6 I'm pretty sure Position is (negative) from starting point to origin
For 1.7 I'm pretty sure Position is (positive) from starting point to origin
For 1.8 I'm pretty sure Position is (negative) from starting point to origin
How can you determine velocity and acceleration which are derivatives from a line that has no equation or labeled points??? I'm also aware of what is called inflection points where it changes from positive to negative. Are there rules I'm missing here? Would all signs be the same since this is 1D motion??
The teacher doesn't teach we just do activities and have whole chapters worth of 20 mini assignments due every few days. Yes I did read the book.
1. Homework Statement
Determine the signs (positive or negative) of the position, velocity, and acceleration for the particle in
FIGURE Q1.6, FiGURE Q1.7 and FIGURE 1.8:
Figure 1.6
Figure 1.7 and Figure 1.8
2. Relevant equations
x=x(t) distance or position
__dx
v=  velocity
__dt
__dv_____d^(2)x
a=  or  acceleration
__dt_____dt^(2)
Ignore this "__" it is a space this doesn't accept spaces like some languages do...
The Attempt at a Solution
For 1.6 I'm pretty sure Position is (negative) from starting point to origin
For 1.7 I'm pretty sure Position is (positive) from starting point to origin
For 1.8 I'm pretty sure Position is (negative) from starting point to origin
How can you determine velocity and acceleration which are derivatives from a line that has no equation or labeled points??? I'm also aware of what is called inflection points where it changes from positive to negative. Are there rules I'm missing here? Would all signs be the same since this is 1D motion??
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