<span>Velocity is a vector quantity, that's formally defined as the rate of change of position or displacement with time. When stating any vector like the velocity of an object, we talk about direction, as well as magnitude. That's why speed and velocity are different things. Speed is a scalar (a pure number, specified by magnitude, without direction), while velocity is a vector. To put it simply, speed is the magnitude of the velocity. When talking about velocity, we specify it according to some fixed frame of reference and its unit is meters/second. It can be measured in two ways. One is in the form of average velocity, while the other is instantaneous velocity. The formula for the former is as follows.</span>
If the small and big stones are dropped from the roof of a house simultaneously, both stones will reach the ground at the same time due to the effect of gravity.
No matter how much is the mass of an object the gravity will attract it to the earth center with an acceleration of 32,17 ft/s2
<h3>What is gravity?</h3>
In physics, gravity is the force of attraction that the earth exerts on all bodies possessing mass by pulling them toward its center.
Learn more about gravity at: brainly.com/question/557206
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Answer: Earth's magnetic field has flipped its polarity many times over the ... Earth has settled in the last 20 million years into a pattern of a pole reversal about ... And while reversals have happened more frequently in "recent" years, when ... per year, as opposed to about 10 miles per year in the early 20th century.
Explanation: