
Static Friction Calculations

Interactive Video
•
Mathematics, Physics, Science
•
9th - 12th Grade
•
Hard

Ethan Morris
FREE Resource
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What mistake did the teacher realize was made in the previous video?
The wrong formula was used.
The wrong numbers were entered into the calculator.
The wrong units were applied.
The wrong video was referenced.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the incorrect number used in the previous calculation?
40 square roots of 3
49 square roots of 3
39 square roots of 3
50 square roots of 3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct expression for the coefficient of static friction as explained by the teacher?
49 divided by 50 times the square root of 3
50 divided by 49 times the square root of 3
50 divided by 40 times the square root of 3
40 divided by 49 times the square root of 3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the rounded value of the coefficient of static friction calculated by the teacher?
0.79
0.69
0.59
0.49
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the teacher confirm at the end of the explanation?
The formula used was incorrect.
The video needs to be re-recorded.
The calculation was correct in the previous video.
The coefficient of static friction is 0.59.
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