Find the sum of the vector displacements c and d whose components in miles along three perpendicular directions are cx = 7, cy = 8, cz = 0; dx = -5, dy = 0, dz = 8.
Answers
Answered by
1
Explanation:
Given:
→
c
=
7.7
^
i
−
3.3
^
j
−
6.3
^
k
m
→
d
=
4.4
^
i
−
2.9
^
j
+
3.7
^
k
m
Vector sum of both vectors c and d, can be calculated as :
→
r
=
→
c
+
→
d
→
r
=
(
7.7
^
i
−
3.3
^
j
−
6.3
^
k
)
+
(
4.4
^
i
−
2.9
^
j
+
3.7
^
k
)
→
r
=
12.1
^
i
−
6.2
^
j
−
2.6
^
k
magnitude of resultant r can be calculated as :
r
=
√
(
12.1
)
2
+
(
−
6.2
)
2
+
(
−
2.6
)
2
=
13.84
m
Answered by
0
Answer:
cx=7 6532 6896 8765 7654bck
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