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Yuri [45]
3 years ago
11

Um móvel realiza movimento retilíneo uniformemente

Physics
1 answer:
Alona [7]3 years ago
8 0
B is the correct answer hope that helped
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To solve this problem, you must figure out (in vector form) both the wind vector and plane vector

w⃗ = wind vector

P⃗ = plane vector

 To get the  true course of the plane, you need to add the plane and wind vectors, the formula would be

w⃗ +P⃗ ,

 which will result to the ground speed.

ground speed=||w⃗ +P⃗ ||

 

Using the planar representation of your situation, this will help you understand the equation, use this to make the equation more understandable.

w⃗ =AB¯¯¯¯¯¯¯¯,   P⃗ =AC¯¯¯¯¯¯¯¯

 

the smaller circle is of radius 50 (similar to the wind speed) and the larger circle is of radius 200 (similar to the plane vector.  To get the coordinates of these two vectors,  use polar coordinates.

Let East be 0 degrees, so since the wind vector is on the circle of radius 50, we have:

w⃗ =⟨50cos(135),50sin(135)⟩=⟨−252√, 252√⟩.

P⃗ =⟨200cos(60),200sin(60)⟩=⟨100,\1003√⟩.

w⃗ +P⃗ =⟨100−252√ , 1003√+252√⟩

||w⃗ +P⃗ ||=(100−252√)2+(1003√+252√)2

√≈218.349218.

 

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Shayla was late for school. She ran the last half mile in 4 minutes. What was her average speed in miles per hour?
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Answer:

7.5 miles per  hour

Explanation:

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Two service technicians are discussing the best way to thread a rod. Technician A says they should use a tap and die set. Techni
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Both technicians are right, to be able to make a threaded joint you need to use the external thread on one part of the rod using the tap and die set, and on the other side of the rod you need to have an internal thread using the thread repair insert kit

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You travel from Point A to Point B to Point C. What is your
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12m is your displacement

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Air in the atmosphere is heated by the ground this warm air then rises and cooler air falls this is an example of what type of p
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The answer for both is ‘B’
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