what is acceleration that is 9.8 meters/sec/sec
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Acceleration is the rate at which an object changes its velocity over time. In the case of the given value, an acceleration of 9.8 meters/second/second means that the object's velocity is increasing by 9.8 meters per second every second.
To understand this concept further, let's break it down:
Acceleration (a) = 9.8 meters/second/second
This means that for every second, the object's velocity increases by 9.8 meters per second. In other words, if the object starts with an initial velocity of 0 meters per second, after one second, its velocity would be 9.8 meters per second. After two seconds, it would be 2 times 9.8, which is 19.6 meters per second, and so on.
To calculate how the velocity changes over time, you can use the following kinematic equation:
Velocity (v) = initial velocity (u) + (acceleration (a) * time (t))
In this equation, the initial velocity represents the starting velocity of the object, and time (t) is the duration for which the acceleration acts.
Given that the initial velocity (u) is 0, and the acceleration (a) is 9.8 meters/second/second, we can determine the velocity (v) after a particular time.
Therefore, the equation becomes:
v = 0 + (9.8 * t)
Where "v" represents the final velocity after time "t".
By plugging in the value of "t," you can calculate the final velocity. For example, if you want to know the velocity after 5 seconds, you would substitute t = 5:
v = 0 + (9.8 * 5) = 49 meters per second.
Remember to include the units in your calculations, as they are important in physics.