Acceleration: Acceleration is the rate of change of an object’s velocity over time. In other words, it is the measure of how quickly an object’s velocity changes, and in which direction it changes. Acceleration is a vector quantity, which means it has both magnitude (or amount) and direction.
Acceleration can be caused by various factors, such as changes in speed, direction of motion, or both. For example, a car accelerating from a stop sign, a ball thrown into the air, or a planet orbiting around a star are all examples of objects experiencing acceleration.
The SI unit for acceleration is meters per second squared (m/s2). This unit describes how many meters per second an object’s velocity changes each second due to acceleration. Positive acceleration refers to an increase in velocity, while negative acceleration (also known as deceleration or retardation) refers to a decrease in velocity.
The formula for acceleration is:
acceleration = (final velocity – initial velocity) / time
where “final velocity” is the object’s velocity at the end of the time period, “initial velocity” is the object’s velocity at the beginning of the time period, and “time” is the duration of the time period.
There are several types of acceleration, including:
It’s important to note that an object can experience multiple types of acceleration at the same time, such as a car accelerating while turning a corner, which would involve both tangential and centripetal acceleration.
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