Vector And Force Exerted Problems

In summary, the conversation is about a student struggling with solving vector problems in physics because they haven't learned it in math and don't have a physics book. They ask for help understanding the steps to solve the problems. In question 7, a group of women and men have a tug-o-war contest with different forces exerted. In question 8, a person is trying to calculate the time it will take to reach their car while tubing downstream. In question 9, a person travels in different directions to reach their destination. And in question 10, an airplane's velocity and direction are given and trigonometry is suggested to solve the problem.
  • #1
qtbuy07
2
0
It's Trig and Vector Review For Physics
I Haven't Learned How To Solve Vector Problems Yet In Math
I Tried Looking In The Math Book But I Still Don't Understand
And We Aren't Given A Physics Book
Please Help; You Don't Have To Give The Answer Just Steps To Help Solve It

7) The women decide to have a tug-o-war contest with the men. Two representatives are chosen from each. Each woman pulls with a force of 1.5N. One of the men can pull with a force of 2N and the other with 0.9N.
A)What is the total force exerted by the women?
B)By the men?
C)What is the resultant force?

8)While tubing you realize that you are going to be late for a date. You paddle downstream at a velocity of 6KM/HR and the rive flows at 5KM/HR. If your car is 9KM downstream how many minutes will it take you to reach it?
(I found that 6KM/HR=1.0KM/MIN and 5KM/HR=0.8KM/MIN)

9) While trying to intercept the love of his life Jon traveled 10Meters north, 5Meters west, 14Meters south, and 2Meters east. How far and in what direction did he end up with reference to his original position?

10)An airplane flies with a velocity of 625KM/HR at a compass heading 330 (Degrees) What are the components of its velocity in a southerly and easterly direction?
 
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  • #2
HI,
In all the questions drawing a diagram will help.
7 is adding and subtracting forces in 1 dimension
8 is similar to 7 but with speeds rather than forces
9 draw a diagram to scale
10 draw a diagram and use some trig

Note in question 8 that your wrong with the speed per minute 6km/hr is not same as 1km/min otherwise it would only take 6mins to do 6km not 1 hour.


hope this helps
 

What is a vector?

A vector is a mathematical representation of a quantity that has both magnitude (size) and direction. It is often represented graphically by an arrow pointing in the direction of the vector, with the length of the arrow representing the magnitude.

What is the difference between a vector and a scalar?

A scalar is a quantity that has only magnitude, while a vector has both magnitude and direction. Examples of scalars include temperature and mass, while examples of vectors include displacement and velocity.

How do you add two vectors?

In order to add two vectors, you must add their components separately. The x and y components of each vector are added together to get the x and y components of the resulting vector. This can be done graphically or using mathematical equations.

What is a force?

A force is a vector quantity that describes the interaction between two objects. It is typically represented by an arrow pointing in the direction of the force, with the length of the arrow representing the magnitude. Forces can cause objects to accelerate, decelerate, or change direction.

How do you solve force exerted problems?

To solve force exerted problems, you must first identify all of the relevant forces acting on the object. Then, you can use Newton's laws of motion and vector addition to determine the net force on the object. Finally, you can use this net force to calculate the resulting acceleration or other desired quantities.

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