Vector Analysis and Force Calculations

Vector Analysis and Force Calculations

Assessment

Interactive Video

Physics

9th - 10th Grade

Practice Problem

Hard

Created by

Thomas White

FREE Resource

The video tutorial covers solving vector components and forces in physics problems. It begins with an introduction to Vector G, followed by correcting calculation errors. The tutorial then moves to Vector H, using trigonometry to solve for components. It explains summing forces in X and Y directions and applies the Pythagorean theorem to find resultant forces. The video concludes with questions on force reduction and direction range, emphasizing practical applications.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in sketching vector G with its components?

Draw the Y component first

Identify the resultant force

Calculate the angle of the vector

Determine the magnitude of the vector

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you solve for G of X in vector G?

Divide 100 by the sine of 15 degrees

Divide 100 by the cosine of 15 degrees

Multiply 100 by the sine of 15 degrees

Multiply 100 by the cosine of 15 degrees

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the error identified in the initial calculation of G's components?

The resultant force was not considered

The angle used was incorrect

G of Y was calculated to be larger than G of X

G of X was calculated to be larger than G of Y

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In question 12, what is different about the vector compared to question 11?

It has a longer Y component

It has a longer X component

It is a resultant vector

It is a unit vector

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate H of X in question 12?

Multiply 50 by the cosine of 20 degrees

Divide 50 by the sine of 20 degrees

Divide 50 by the cosine of 20 degrees

Multiply 50 by the sine of 20 degrees

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sum of the forces in the X direction for question 13?

72.9 Newtons

96.6 Newtons

47.0 Newtons

113.9 Newtons

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What mathematical relationship is used in question 14 to find the resultant force?

Vector Addition

Law of Cosines

Law of Sines

Pythagorean Theorem

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