i) The velocity-time (v-t) graph of an object is shown in the figure below velocity (m/s) 80 60 40 20 time (s) - 20 - 40 10 20 30 40 50 Evaluate (a) the acceleration for 25 s to 40 s (b) the distance covered from 30 s to 55 s

i) The velocity-time (v-t) graph of an object is shown in the figure below velocity (m/s) 80 60 40 20 time (s) - 20 - 40 10 20 30 40 50 Evaluate (a) the acceleration for 25 s to 40 s (b) the distance covered from 30 s to 55 s

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Q10. i) The velocity-time (v-t) graph of an object is shown in the figure below
velocity
(m/s)
80
60
40
20
time
(s)
- 20
- 40
10
20
30
40
50
Evaluate (a) the acceleration for 25 s to 40 s
(b) the distance covered from 30 s to 55 s
ii) 2000-kg car increased its speed from 6 m/s to 14 m/s in 7 s, taking in mind the
frictional force, calculate the forward force generated by the engine. (µk = 0.15)

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