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# A Vehicle is Moving on a Circular Track Whose Surface is Inclined Towards the Horizon at An Angle of 10°. the Maximum Velocity with Which It Can Move Safely is 36 Km / Hr. Calculate The Length - Physics

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#### Question

A vehicle is moving on a circular track whose surface is inclined towards the horizon at an angle of 10°. The maximum velocity with which it can move safely is 36 km / hr. Calculate the length of the circular track. [π = 3.142]

#### Solution

Given, angle of banking, θ = 10°
Optimum speed, V0 = 36 km/hr = 36 x 5/18 m/s.
Or, V= 10 m/s
Let R be the radius of the circular track
We have,
V= sqrt( gRtanθ )
⇒ V_0^2 = gRtanθ

⇒ R = V_0^2/[ g tanθ ]

= (10m/s)^2/[(9.8m/s^2) xx tan 10^0]

= [100m]/[ 9.8 xx 0.1763 ]

⇒ R = 57.88 m
∴ Length of the circular track = 2πR = 2 x 3.142 x 57.88 = 363.72m.

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#### APPEARS IN

2016-2017 (March) (with solutions)
Question 3.4 | 3.00 marks
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#### Video TutorialsVIEW ALL [2]

A Vehicle is Moving on a Circular Track Whose Surface is Inclined Towards the Horizon at An Angle of 10°. the Maximum Velocity with Which It Can Move Safely is 36 Km / Hr. Calculate The Length Concept: Uniform Circular Motion.
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