Rabbit's position vector (r) in the unit vector is 203.5î - 57j and the magnitude and directional angle of vector (r) are 195.35m and 0.004° respectively.
Given
x = 0.3t² + 7.2t + 28
y = 0.22t² - 9.1t +30
At t = 15s
x = 0.3(15)² + 7.2(15) +28 = 203.5
y = 0.22(15)² - 9.1(15) + 30 = -57
The rabbit's position vector (r) in unit vector notation is:
r = 203.5î - 57j
The magnitude of position vector (r)
r = √x² + y²
r = √(203.5)² - (57)² =√38163.25
= 195.35m
The directional angle of position vector (r)
tanθ = y/x = -57/203.5
θ =
(-57/203.5)
θ = 0.004°
Hence, rabbit's position vector (r) in the unit vector is 203.5î - 57j and the magnitude and directional angle of vector (r) are 195.35m and 0.004° respectively.
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Answer:
Una fruta suave comestible que consiste en un grupo de drupeletas suaves de color púrpura-negro.
Let me give you some that I know
eggs, fish,seafood, milk, pork,
I hope that's help:0
The correct answer would be, Broken White lines.
Multilane roads use broken white lines to divide lanes of traffic moving in the same direction.
Explanation:
There are some types of lines that we see on roads while driving. The roads are also of different types. There could be multilane roads, single roads, double roads, etc. Similarly the lines are also different that we see on these lanes.
When there are many lanes going in one direction, like three or four lanes normally, then these lanes are separated with the help of white broken lines. People can move from one lane to another lane depending upon the speed and traffic on the lanes. But there are also some places on the roads where these broken lines become solid and then people are not allowed to switch between the lanes until the broken white lines appear again.
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It's up to you to decide what to do. BECAUSE IT'S STANDS FOR IT IS sorry caps