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3 years ago

What is the acceleration of a car that moves at a steady velocity of 100 km/h for 100 seconds? Explain your answer.

Physics

1 answer:

RUDIKE [14]3 years ago

3 0

Answer:

a = 0 m/s²

Explanation:

given,

car moving at steady velocity = 100 Km/h

1 km/h = 0.278 m/s

100 Km/h = 27.8 m/s

time of acceleration = 100 s

acceleration is equal to change in velocity per unit time.

$a=\dfrac{dv}{dt}$

change in velocity of the car is 27.8 - 27.8 = 0

$a=\dfrac{0}{100}$

a = 0 m/s²

If the car is moving with steady velocity then acceleration of the car is zero.

Hence, the acceleration of the car is equal to a = 0 m/s²

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A square plate of edge length 9.0 cm and negligible thickness has a total charge of 6.90 10-6 C. Estimate the magnitude E of the

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Answer:

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Two loudspeakers in a 20c room emit 686 hz sound waves along the x-axis.a. if the speakers are in phase, what is the smallest di

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(a) d = 0.25 m

(b) d = 0.5 m

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(1) Perfectly destructive interference occurs when the path difference is half integral multiple of wavelength i.e.

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$d=n\lambda$ ( n = integers )

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