Complete speedometer positions and odometer readings in Figure 3.9 Then complete
ID: 1396774 • Letter: C
Question
Complete speedometer positions and odometer readings in Figure 3.9 Then complete the chart below.
time (s)
speed (m/s)
distance (m)
0
0
0
1
10
5
2
20
20
3
4
5
6
Analyze Figure 3.8. Now imagine that you find yourself on a planet X. You toss up a rock with initial speed of 20 m/s. The table below shows few velocities and positions of the rock. Complete all entries for velocites and positions. Pay attention to signs. What is the value of gravitational acceleration on the planet X? Therefore, the value of g is____(write in units as well)
time (s)
velocity (m/s)
distance (m)
0
20
0
1
15
17.5
2
10
3
4
5
6
7
8
time (s)
speed (m/s)
distance (m)
0
0
0
1
10
5
2
20
20
3
4
5
6
Explanation / Answer
First figure.
time (s) speed (m/s) distance (m)
0 0 0
1 10 5
2 20 20
3 30 35
4 40 50
5 50 65
6 60
Second figure.
The second chart can be solved finding out the acceleration with the given data. To do so we must apply (with the given data) the following formula:
a = v1 - v0 / t1 -t0 so if we substitute : v1 = 15 m/s v0= 20 m/s t1= 1s t0= 0s
a = 15 m/s - 20 m/s / 1 s - 0 s = -5 m/s / 1 s = -5 m/s^2 This value represents the gravitational acceleration of planet X.
With the previous value we can obtain the final speed each second by:
vf = vo + at and the distance we can obtain by:
d = vo + (at^2)/2 completiig the chart:
time (s) velocity (m/s) distance (m)
0 20 0
1 15 17.5
2 5 20
3 -10 -7.5
4 -30 -80
5 -55 -137.5
6 -85 -405
7 -120 -717.5
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.