A car traveling along the straight portions of the road has the velocities indicated in the figure when it arrives at points A,B, and C. If it takes 3 s to go from A to B, and then 5 s to go from B to C, determine the average acceleration between points A and B and between points A and C. y VA 20 m/s VB = 30 m/s 450 vc = 40 m/s a.) a(A to B) = {0.404 i +7.07 j} m/s^2 and a (A to C) = {2.00 i} m/s^2 b.) a(A to B) = {0.404 i +7.07 j} m/s^2 and a (A to C) = {2.50 i} m/s^2 c.) a(A to B) = {0.704 i +7.07 j} m/s^2 and a (A to C) = {2.00 i} m/s^2 d.) a(A to B) = {0.704 i +7.07 j} m/s^2 and a (A to C) = {2.50 i} m/s^2

A car traveling along the straight portions of the road has the velocities indicated in the figure when it arrives at points A,B, and C. If it takes 3 s to go from A to B, and then 5 s to go from B to C, determine the average acceleration between points A and B and between points A and C. y VA 20 m/s VB = 30 m/s 450 vc = 40 m/s a.) a(A to B) = {0.404 i +7.07 j} m/s^2 and a (A to C) = {2.00 i} m/s^2 b.) a(A to B) = {0.404 i +7.07 j} m/s^2 and a (A to C) = {2.50 i} m/s^2 c.) a(A to B) = {0.704 i +7.07 j} m/s^2 and a (A to C) = {2.00 i} m/s^2 d.) a(A to B) = {0.704 i +7.07 j} m/s^2 and a (A to C) = {2.50 i} m/s^2

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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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

A car traveling along the straight portions of the road has the
velocities indicated in the figure when it arrives at points A,B, and
C. If it takes 3 s to go from A to B, and then 5 s to go from B to C,
determine the average acceleration between points A and B and
between points A and C.
y
A
X
VA= 20 m/s
PROP
VB = 30 m/s
450
vc = 40 m/s
a.) a(A to B) = {0.404 i +7.07 j} m/s^2 and a (A to C) = {2.00 i} m/s^2
b.) a(A to B) = {0.404 i +7.07 j} m/s^2 and a (A to C) = {2.50 i} m/s^2
c.) a(A to B) = {0.704 i +7.07 j} m/s^2 and a (A to C) = {2.00 i} m/s^2
d.) a(A to B) = {0.704 i +7.07 j} m/s^2 and a (A to C) = {2.50 i} m/s^2

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