12/5/21, 2:55 PM Quiz 1: 202109 - Statics - 43409
Quiz 1
MECE 2230U – Statics Quiz 1 To 5 & Master Quiz
Due Sep 20 at 7:55pm Points 15 Questions 15
Available Sep 20 at 7:30pm - Sep 20 at 7:55pm 25 minutes
Time Limit None
Questions and Answers Latest, 2025 Updated
Instructions
Quiz 1: There are 15 questions to be solved in 25 minutes. To solve a problem, you have one attempt
only and no backtracking. Students registered with SAS will get extra time
as per the recommendation of SAS.”
This quiz was locked Sep 20 at 7:55pm.
Attempt History
Attempt Time Score
LATEST Attempt 1 16 minutes 15 out of 15
Score for this quiz: 15 out of 15
Submitted Sep 20 at 7:46pm
This attempt took 16 minutes.
Question 1 pts
What is the relationship between the unit vector uA and the coordinate
direction angles α, β and ϒ?
Correct!
uA = cos α i + cos β j + cos ϒ k
uA = tan αi + tan β j + tan ϒ k
uA = cos ² α i + cos ² β j + cos ² ϒ k
https://learn.ontariotechu.ca/courses/14089/quizzes/33788 1/11
,12/5/21, 2:55 PM Quiz 1: 202109 - Statics - 43409
uA = sin αi + sin βj + sin ϒk
None of these
Question 2 pts
Resolve F along x and y axes and write it in vector form. F = {
___________ } N
100 cos (60°) i + 100 sin (60°) j
https://learn.ontariotechu.ca/courses/14089/quizzes/33788 2/11
,12/5/21, 2:55 PM Quiz 1: 202109 - Statics - 43409
100 sin (60°) i + 100 cos (60°) j
Correct!
- 100 sin (60°) i – 100 cos (60°) j
None of these
- 100 cos (60°) i – 100 sin (60°) j
Question 3 pts
Determine the magnitude of the resultant (F1 + F2) force in N when
F1 = { 20 i + 30 j } N and
F2 = { 10 i + 10 j } N .
None of these
70 N
60 N
Correct!
50 N
40 N
Question 4 pts
If F = { 20 i + 40 j + 30 k} N
and r = {30 i - 20 j + 20 k } m,
then the dot product of F . r = ?
https://learn.ontariotechu.ca/courses/14089/quizzes/33788 3/11
, 12/5/21, 2:55 PM Quiz 1: 202109 - Statics - 43409
None of these
Correct!
400 Nm
1200 Nm
1600 Nm
800 Nm
Question 5 pts
If F = {20 i + 10 j + 30 k} N and
H = {30 i + 40 j + 20 k } N,
then F + H = { ____ } N
None of these
– 10 i – 10 j – 10 k
10 i + 10 j + 10 k
Correct!
50 i + 50 j + 50 k
30 i + 20 j + 30 k
Question 6 pts
https://learn.ontariotechu.ca/courses/14089/quizzes/33788 4/11
Quiz 1
MECE 2230U – Statics Quiz 1 To 5 & Master Quiz
Due Sep 20 at 7:55pm Points 15 Questions 15
Available Sep 20 at 7:30pm - Sep 20 at 7:55pm 25 minutes
Time Limit None
Questions and Answers Latest, 2025 Updated
Instructions
Quiz 1: There are 15 questions to be solved in 25 minutes. To solve a problem, you have one attempt
only and no backtracking. Students registered with SAS will get extra time
as per the recommendation of SAS.”
This quiz was locked Sep 20 at 7:55pm.
Attempt History
Attempt Time Score
LATEST Attempt 1 16 minutes 15 out of 15
Score for this quiz: 15 out of 15
Submitted Sep 20 at 7:46pm
This attempt took 16 minutes.
Question 1 pts
What is the relationship between the unit vector uA and the coordinate
direction angles α, β and ϒ?
Correct!
uA = cos α i + cos β j + cos ϒ k
uA = tan αi + tan β j + tan ϒ k
uA = cos ² α i + cos ² β j + cos ² ϒ k
https://learn.ontariotechu.ca/courses/14089/quizzes/33788 1/11
,12/5/21, 2:55 PM Quiz 1: 202109 - Statics - 43409
uA = sin αi + sin βj + sin ϒk
None of these
Question 2 pts
Resolve F along x and y axes and write it in vector form. F = {
___________ } N
100 cos (60°) i + 100 sin (60°) j
https://learn.ontariotechu.ca/courses/14089/quizzes/33788 2/11
,12/5/21, 2:55 PM Quiz 1: 202109 - Statics - 43409
100 sin (60°) i + 100 cos (60°) j
Correct!
- 100 sin (60°) i – 100 cos (60°) j
None of these
- 100 cos (60°) i – 100 sin (60°) j
Question 3 pts
Determine the magnitude of the resultant (F1 + F2) force in N when
F1 = { 20 i + 30 j } N and
F2 = { 10 i + 10 j } N .
None of these
70 N
60 N
Correct!
50 N
40 N
Question 4 pts
If F = { 20 i + 40 j + 30 k} N
and r = {30 i - 20 j + 20 k } m,
then the dot product of F . r = ?
https://learn.ontariotechu.ca/courses/14089/quizzes/33788 3/11
, 12/5/21, 2:55 PM Quiz 1: 202109 - Statics - 43409
None of these
Correct!
400 Nm
1200 Nm
1600 Nm
800 Nm
Question 5 pts
If F = {20 i + 10 j + 30 k} N and
H = {30 i + 40 j + 20 k } N,
then F + H = { ____ } N
None of these
– 10 i – 10 j – 10 k
10 i + 10 j + 10 k
Correct!
50 i + 50 j + 50 k
30 i + 20 j + 30 k
Question 6 pts
https://learn.ontariotechu.ca/courses/14089/quizzes/33788 4/11
