Position-Time Graphs. POSITION (m) TIME (s) 10 20 30 40 50 5 10 1520 25 0 0 v = v = 2 m/s [E] 50 -...
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Transcript of Position-Time Graphs. POSITION (m) TIME (s) 10 20 30 40 50 5 10 1520 25 0 0 v = v = 2 m/s [E] 50 -...
Position-Time Graphs
PO
SIT
ION
(m
)TIME (s)
10
20
30
40
50
5 10 15 20 2500
v =
v = 2 m/s [E]
50 - 3025 - 15
v = ΔdΔt
v = 35 - 1517.5 - 7.5
+ 3.8 m/s
v =
+ 6.7 m/s
v =
v =
∆dt
PO
SIT
ION
(m
)
TIME (s)
5
10
15
20
1 2 3 4
The steeper the line on a P-T graph, the greater the magnitude (size) of the velocity for that interval.
Relating P-T graphs to Velocity
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Origin- +
P(m
)
T(s)
P - T Graph
+ slope
Straight lineModerate slopePositive slope
Uniform velocitySlow velocityMoving away to the right
d1
d2
10
0
Origin- +
P(m
)
T(s)
P - T Graph
+ slope
Straight lineSteep slopePositive slope
Uniform velocityFast velocityMoving away to the right
d1 d2
Origin- +
P(m
)
T(s)
P - T Graph
No change in position No velocity (Uniform)
d1
NO slope
P - T Graph
Origin- +
P(m
)
T(s)
- slope
Straight lineModerate slopeNegative slope
Uniform velocitySlow velocityMoving towards the left
d1d2
Origin- +P - T Graph
P(m
)
T(s)
- slope
Straight lineSteep slopeNegative slope
Uniform velocityFast velocityMoving towards the left
d1d2
P(m
)
T(s)
P - T Graph
- slope
Origin- +
Straight lineSteep slopeNegative slope
Uniform velocityFast velocityMoving left and passing
d1d2
0
+30
-5
Pos
itio
n (m
)
Time (s)0
+35
30
25
20
15
10
5
5
-10
∆d = 5 + 15 + 5 = 25 m
∆d = d2 – d1
= (+15) – (0) = +15 m