Answer:
(a) A+B = 2i-3j
(B) A-B = 4i + j
Explanation:
We have given two vectors A = 3i-j and B = -1-2j
We have to find the two vectors that is A+B and A-B
(A) In first art we have calculate A+B for this we have to add simply vector A and v ector B
So A+B = 3i-j-i-2j = 2i-3j
(B) In this part we have to find A-B for this we have to simply subtract B from A so A-B = 3i-j-(-i-2j) =3i-j+i+2j =4i+j
The volume of any rectangular solid, including a cube, is calculated mathematically as V = l × w × h
<h3>How to find a cross-sectional area?</h3>
In a given calculation, if you are given the:
To find this, you would have to use the area of its base which is:
Length * Width * Height.
Furthermore, if the cross-section is parallel, then you would have to solve it thus:
Length * Width which is the area of the section from top to bottom.
Although your question is incomplete, the general idea of how to find the cross-sectional area of the volume of any rectangular solid.
Read more about cross-sectional area here:
brainly.com/question/10429397
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Answer:
The first interval is walked slowly, this is a straight line with a small slope
Second interval stops, which gives a horizontal line, indicating the same position
Third interval, walk back, straight downhill
Explanation:
In this problem we have a uniform movement, this means that the acceleration in each intervals
x = v t
The first interval is walked slowly, this is a straight line with a small slope
Second interval stops, which gives a horizontal line, indicating the same position
Third interval, walk back, straight downhill
Answer:
Explanation:
Given:
- mass of the player,
- coefficient of kinetic friction between the ground and the player,
- Since the normal reaction force on the player due to its mass will be equal to the weight of the player.
<u>We have the expression of kinetic friction as:</u>
here:
N = normal reaction force
