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Vikki [24]
2 years ago
10

A jet begins a flight along a path due north at 300 miles per hour. A wind is blowing due west at 30 miles per hour. Find the re

sultant velocity of the plane
Physics
1 answer:
schepotkina [342]2 years ago
6 0

Answer:

about 301 mph 5.7 west of north

Explanation:

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     The derivative of the function space as a function of time is equal to a function of speed as a function of time.

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     The velocity vector is given by the vector sum of the velocities of  both axes.

v_{R}^2(t)=v_{x}^2(t)+v_{y}^2(t) \\ v_{R}^2(t)=(t)^2+(2.4t)^2 \\ \boxed {v_R(t)=2.6t}

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4 years ago
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meriva

Current pulled by these appliances is 10.25 A

Explanation:

  • Step 1: Find the total power used by these appliances.

Total power = 240 + 30 + 720 + (2 × 120) = 1230 W

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If the range of the projectile is 4.3 m, the time-of-flight is T = 0.829 s, and air resistance is negligible, determine the foll
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Answer

given,

range of the projectile = 4.3 m

time of flight = T = 0.829 s

v =\dfrac{d}{T}

v =\dfrac{4.3}{0.829}

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v_y = 9.8 \times {\dfrac{T}{2}}

v_y = 9.8 \times {\dfrac{0.829}{2}}

v_y =4.06\ m/s

a) Launch angle

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 \theta = tan^{-1}(\dfrac{4.06}{5.19})

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b) initial speed of projectile

  v = \sqrt{v_x^2 + v_y^2}

  v = \sqrt{5.19^2 + 4.06^2}

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c) maximum height reached by the projectile

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