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Check by dimensions whether the equation...

Check by dimensions whether the equation `tan theta=(rg)/(v^(2))` is correct.
Here, r = radius of curvature of path, g = acceleration due to gravity
v = velocity of body moving on the curved path, `theta`= angle of banking of the road

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To check the dimensional correctness of the equation \( \tan \theta = \frac{rg}{v^2} \), we will analyze both sides of the equation step by step. ### Step 1: Analyze the Left-Hand Side (LHS) The left-hand side of the equation is \( \tan \theta \). The tangent of an angle is a ratio of two lengths (opposite side over adjacent side), which means it is a dimensionless quantity. **LHS:** \[ \text{Dimension of LHS} = M^0 L^0 T^0 \]
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Knowledge Check

  • A motorcycle moving with a velocity of 72 km h^(-1) on a flat road takes a turn on the road at a point where the radius of curvature of the road is 20 m. The acceleration due to gravity is 10 ms^(-2) . In order to avoid skidding, he must not bent with respect to the vertical plane by an angle greater than

    A
    `theta = tan^(-1) (2) `
    B
    `theta = tan ^(-1) (6) `
    C
    ` theta tan ^(-1) (4)`
    D
    ` theta = tan^(-1) ( 25.92)`
  • A motor cylist moving with a velocity of 72 km / hour on a flat road takes a turn on the road at a point where the radius of curvature of the road is 20 m . The acceleration due to gravity is 10 m // sec ^(2) . In order to avoid skidding , he must not bend with respect to the vertical plane by an angle greater than

    A
    `theta = tan ^(-1) 6`
    B
    `theta = tan ^(-1) 2`
    C
    `theta = tan ^(-1) 25.92`
    D
    `theta = tan ^(-1) 4`
  • A circular curve of a highway is designed for traffic moving at 72 km/h. If the radius of the curved path is 100m, the correct angle of banking of the road shold be given by :

    A
    `tan^(-1)(2)/(3)`
    B
    `tan^(-1)(3)/(5)`
    C
    `tan^(-1)(2)/(5)`
    D
    `tan^(-1)(1)/(4)`
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