lo, I have attached a question with the answers. I don't need the answer, I need to know why the lecturer did each step and what process I should use to answer similar questions.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 2P: A hiker walks 2.00 km north and then 3.00 km east, all in 2.50 hours. Calculate the magnitude and...
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hello, I have attached a question with the answers. I don't need the answer, I need to know why the lecturer did each step and what process I should use to answer similar questions. 

 

The more detail you give me, the better. Thank you so much. 

A1) A particle travels along a circular path with a radius of 10m. At the instances t = 0, 5, 10 and
15s, it reaches points A, B, C and A respectively. Determine the displacement, the distance
travelled, the average velocity and the average speed for each of the following intervals:
St1
first 5 seconds
second 5 seconds
ôt3
third 5 seconds
Y-axis
total 15 seconds
B
Х-ахis
A
Verplasing / Displacement Afstand / Distance Snelheid / Velocity Spoed / Speed
10i+ 10 j m
57 = 15.71 m
3.14 m/s
2i+2j m/s
2i- 2 j m/s
ôt2:
10i – 10 j m
57 = 15.71 m
3.14 m/s
dtz:
-20 i m
107 = 31.42 m
-4i m/s
6.28 m/s
ôt4:
0 m
20л — 62.84 m
0 m/s
4.19 m/s
Transcribed Image Text:A1) A particle travels along a circular path with a radius of 10m. At the instances t = 0, 5, 10 and 15s, it reaches points A, B, C and A respectively. Determine the displacement, the distance travelled, the average velocity and the average speed for each of the following intervals: St1 first 5 seconds second 5 seconds ôt3 third 5 seconds Y-axis total 15 seconds B Х-ахis A Verplasing / Displacement Afstand / Distance Snelheid / Velocity Spoed / Speed 10i+ 10 j m 57 = 15.71 m 3.14 m/s 2i+2j m/s 2i- 2 j m/s ôt2: 10i – 10 j m 57 = 15.71 m 3.14 m/s dtz: -20 i m 107 = 31.42 m -4i m/s 6.28 m/s ôt4: 0 m 20л — 62.84 m 0 m/s 4.19 m/s
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