4. A toy car moves along a straight east-west track. The position of the car is measured relative to a red dot on the track. We consider the positive-x-direction to point east. In this one- dimensional problem, x, v, and a represent the x-components of the car's position, velocity, and en acceleration vectors, respectively. Below is a graph of x-versus-t. x (m) 2.04 1.04 0.00 animooools00.0 1.0 2.0 3.0 4.0 5.0 60 7.0 8.0 9.0 -1.0. -2.0+ 10.0 1.0 t (sec) Some of the questions below ask for "time(s)." The answers may be instants of time such as "4.5 s" or "9.0 s" or "4.5 s and 9.0 s," or the answers may be intervals of time such as "between 3.5 s and 5.5 S." 2.5, beads gnol wod booge (a) At approximately what time(s) is the instantaneous velocity, v, of this car equal to zero? (b) At approximately what time(s) is the car moving toward the east? 7,0-11.0 (c) At approximately what time(s) is the car located to the west of the red dot? 0.5-7.0 (d) Determine the instantaneous velocity, v, of the car at 6.5 s. +²=0.03 (e) Determine (approximately) the instantaneous velocity, v, of the car at 0.5 s.O (f) Determine the average acceleration, a., of the car in the interval between 0.5 s and 6.5 s. (g) Determine the instantaneous acceleration, a, of the car at 6.5 s. (h) In your answer booklet, make an approximate graph of v-versus-t. Even though your graph is approximate, it should still have axes labeled with numbers.
4. A toy car moves along a straight east-west track. The position of the car is measured relative to a red dot on the track. We consider the positive-x-direction to point east. In this one- dimensional problem, x, v, and a represent the x-components of the car's position, velocity, and en acceleration vectors, respectively. Below is a graph of x-versus-t. x (m) 2.04 1.04 0.00 animooools00.0 1.0 2.0 3.0 4.0 5.0 60 7.0 8.0 9.0 -1.0. -2.0+ 10.0 1.0 t (sec) Some of the questions below ask for "time(s)." The answers may be instants of time such as "4.5 s" or "9.0 s" or "4.5 s and 9.0 s," or the answers may be intervals of time such as "between 3.5 s and 5.5 S." 2.5, beads gnol wod booge (a) At approximately what time(s) is the instantaneous velocity, v, of this car equal to zero? (b) At approximately what time(s) is the car moving toward the east? 7,0-11.0 (c) At approximately what time(s) is the car located to the west of the red dot? 0.5-7.0 (d) Determine the instantaneous velocity, v, of the car at 6.5 s. +²=0.03 (e) Determine (approximately) the instantaneous velocity, v, of the car at 0.5 s.O (f) Determine the average acceleration, a., of the car in the interval between 0.5 s and 6.5 s. (g) Determine the instantaneous acceleration, a, of the car at 6.5 s. (h) In your answer booklet, make an approximate graph of v-versus-t. Even though your graph is approximate, it should still have axes labeled with numbers.
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Please answer question h
Transcribed Image Text:4. A toy car moves along a straight east-west track. The position of the car is measured relative to
a red dot on the track. We consider the positive-x-direction to point east. In this one-
dimensional problem, x, v, and a represent the x-components of the car's position, velocity, and
en acceleration vectors, respectively. Below is a graph of x-versus-t.
x (m)
2.04
1.0-
0.00
animos holsc0.0 1.0 2.0 3.0 4.0 5.0 6.0 8.0 9.0 10.0
-1.0-
-2.0+
1.0
t (sec)
Some of the questions below ask for "time(s)." The answers may be instants of time such as "4.5 s"
or "9.0 s" or "4.5 s and 9.0 s," or the answers may be intervals of time such as "between 3.5 s and 5.5
S."
C
2.5
beads gool wod booge
(a) At approximately what time(s) is the instantaneous velocity, v, of this car equal to zero?
(b) At approximately what time(s) is the car moving toward the east? 7,0-11.0
(c) At approximately what time(s) is the car located to the west of the red dot? 0.5-7.0
(d) Determine the instantaneous velocity, v, of the car at 6.5 s. Axet
+²=0.03
(e) Determine (approximately) the instantaneous velocity, v, of the car at 0.5 s.O
(f) Determine the average acceleration, a, of the car in the interval between 0.5 s and 6.5 s.
(g) Determine the instantaneous acceleration, a, of the car at 6.5 s.
(h) In your answer booklet, make an approximate graph of v-versus-t. Even though your graph is
approximate, it should still have axes labeled with numbers.
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