3 years ago

For typical rubber-on-concrete friction, what is the shortest time in which a car could accelerate from 0 to 50 mph

Physics

1 answer:

SVEN [57.7K]3 years ago

6 0

Answer:

2.5sec

Explanation:

for the typical rubber on concrete it will take 2.5seconds which is the shortest time.

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(B). The width of the bright fringe is 3.33 μm.

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Given that,

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Distance of screen and slit D = 1.5 m

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(A) We need to calculate the order of the bright fringe

Using formula of wavelength

$\lambda=\dfrac{dy}{mD}$

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$m=\dfrac{1\times10^{-2}\times0.5\times10^{-3}}{589\times10^{-9}\times1.5}$

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Using formula of width of fringe

$\beta=\dfrac{yd}{D}$

Put the value in to the formula

$\beta=\dfrac{1\times10^{-2}\times0.5\times10^{-3}}{1.5}$

$\beta=3.33\times10^{-6}\ m$

$\beta=3.33\ \mu m$

Hence, (A). The order of the bright fringe is 6.

(B). The width of the bright fringe is 3.33 μm.

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