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3 years ago

If two automobiles have the same acceleration, do they have the same velocity? Why or why not?

Physics

1 answer:

scoray [572]3 years ago

4 0

Answer:

Explanation:

Acceleration = Velocity/Time

An example of where the velocity would be different is:

Acceleration = $\frac{10\ m/s}{2s}=5\ m/s^2$ (automobile 1)

Acceleration = $\frac{25 \ m/s}{5 s}=5\ m/s^2$ (automobile 2)

As you can see, the velocity for the first automobile is 10 m/s while the second one has a velocity of 25 m/s (with a greater time travelled) and both resulted in the same acceleration of 5 m/s².

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<h3>Introduction</h3>

Hi ! In this question, I will help you. This question uses two principles, namely the time for an object to fall freely and the time for sound to propagate through air. When moving in free fall, the time required can be calculated by the following equation:

$\sf{h = \frac{1}{2} \cdot g \cdot t^2}$

$\sf{\frac{2 \cdot h}{g} = t^2}$

$\boxed{\sf{\bold{t = \sqrt{\frac{2 \cdot h}{g}}}}}$

With the following condition :

t = interval of the time (s)
h = height or any other displacement at vertical line (m)
g = acceleration of the gravity (m/s²)

Meanwhile, for sound propagation (without sound reflection), time propagates is the same as the quotient of distance by time. Or it can be formulated by :

$\boxed{\sf{\bold{t = \frac{s}{v}}}}$