A car at the indianapolis-500 accelerates uniformly from the pit area, going from rest to 335 km/h in a semicircular arc with a radius of 194 m. determine the tangential acceleration of the car when it is halfway through the turn, assuming constant tangential acceleration.

Respuesta :

Answer:

Acceleration, [tex]a=44.63\ m/s^2[/tex]                                                          

Explanation:

It is given that,

Initial speed of the car, u = 0

Final speed of the car, v = 335 km/h = 93.05 m/s

Radius of the semicircular arc, r = 194 m

Distance covered by the car in the semicircular arc is, [tex]s=\dfrac{2\pi r}{2}=\pi r[/tex]

The tangential acceleration of the car is given by the following formula as :

[tex]a=\dfrac{v^2}{r}[/tex]

[tex]a=\dfrac{(93.05\ m/s)^2}{194\ m}[/tex]

[tex]a=44.63\ m/s^2[/tex]

So, the tangential acceleration of the car when it is halfway through the turn is [tex]44.63\ m/s^2[/tex]. Hence, this is the required solution.

The tangential acceleration of the car when it is halfway through the turn will be    [tex]a=44.63\dfrac{m}{s^2}[/tex]

What will be the tangential acceleration?

Data we have

The initial speed of the car, u = 0

The final speed of the car, v = 335 km/h = 93.05 m/s

The radius of the semicircular arc, r = 194 m

Distance covered by the car in the semicircular arc is,

[tex]S=\dfrac{2\pi r}{2} =\pi r[/tex]

The formula for calculating tangential; acceleration will be

[tex]a=\dfrac{v^2}{r} = \dfrac{93.05^2}{194}[/tex]

[tex]a=44.63\ \frac{m}{s^2}[/tex]

Thus the tangential acceleration of the car when it is halfway through the turn will be    [tex]a=44.63\dfrac{m}{s^2}[/tex]

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