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igomit [66]
3 years ago
11

Curves on some test tracks and race courses, such as the Daytona International Speedway in Florida, are very steeply banked.

Physics
1 answer:
docker41 [41]3 years ago
8 0

Answer:

Speed, v = 45.84 m/s

Explanation:

Given that,

Radius of the curve, r = 100 m

Banking of the curve, \theta=65^{\circ}

On the banking of curve, the speed of the vehicle is given by :

v=\sqrt{rg\ tan\theta}

v=\sqrt{100\times 9.8\times \ tan(65)}

v = 45.84 m/s

So, the speed at which a 100 m radius curve banked is 45.84 m/s. Hence, this is the required solution.

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Answer

given,

distance = 140 m

time, t = 3.6 s

moving speed = 53 m/s

a) distance = (average velocity) x time

    D = \dfrac{v_0 + v_1}{2}\times t

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       v₀ + 53 = 77.78

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b) a = \dfrac{v-u}{t}

   a = \dfrac{53-25}{3.6}

         a = 7.8 m/s²

using equation of motion

  v₀² = v₁² + 2 a s

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  s = 180 m

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3 years ago
the amplitude of the wave is which of the following A. Resonance B. Reflection C. Energy D. Magnitude
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D.Magnitude is the answer
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The space shuttle usually orbited Earth at altitudes of around 300.0 km. 1) Determine the time for one orbit of the shuttle abou
777dan777 [17]

Answer:

Explanation:

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T = 2π R /√gR

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3 years ago
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Answer:

  B.  80 m/s²

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F = ma

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