2 years ago

An airplane has an air speed of 550 miles per hour bearing N30°W. The wind velocity is 50 miles per hour in the direction N30°

1 answer:

8 0

Based on this particular physics problem, it is given that the speed of the plane is 550 mph in the N30W direction. The wind velocity is 50 mph and more information is given.

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1. The position of a particle moving along a coordinate axis is given by: s(t) = t^2 - 5t + 1. a) Find the speed of the particle

zimovet [89]

Answer: $\left | 2t-5\right |,\ 2,\ 2t-5$

Step-by-step explanation:

Given

Position of the particle moving along the coordinate axis is given by

$s(t)=t^2-5t+1$

Speed of the particle is given by

$\Rightarrow v=\dfrac{ds}{dt}\\\\\Rightarrow v=\dfrac{d(t^2-5t+1)}{dt}\\\\\Rightarrow v=\left | 2t-5\right |$

Acceleration of the particle is

$\Rightarrow a=\dfrac{dv}{dt}\\\\\Rightarrow a=2$

velocity can be negative, but speed cannot

$\Rightarrow v=\dfrac{ds}{dt}\\\\\Rightarrow v=\dfrac{d(t^2-5t+1)}{dt}\\\\\Rightarrow v=2t-5$

3 0

2 years ago

Evaluate 51x3 - 21 + 7 when x = -2. DONE

Nana76 [90]

Answer:

-320 i guess

Step-by-step explanation:

51*-2*3-21+7=-320

3 0

2 years ago

Read 2 more answers

Simplify the following leave the answer in radical notation:

Nataliya [291]

Answer:

1- 5xy³√5y

2- 2xy²∛3y²

Step-by-step explanation:

√125x²y^7=

√25*5x²y^6y

5xy³√5y

2) ∛24x³y^8=

∛2³*3x³y^8=

2xy²∛3y²

7 0

2 years ago

Please help I will give you brainliest

mezya [45]

Answer:

Answer is 5 3/4

Step-by-step explanation:

Thanks Hope this helps

5 0

2 years ago

Z4 = Z5 so A//B True or False

Jet001 [13]

Answer:

True

Step-by-step explanation:

∠4 ≅ ∠5 are corresponding angle and equal to each other

8 0

2 years ago