Question

How can we find the acceleration of an object if we know its velocity?

Answer 1

To find the acceleration of an object if you know its velocity, you need additional information such as its initial velocity or the time interval over which the velocity changes.

If you have the initial velocity ($u$) and the final velocity ($v$) of the object, as well as the time taken ($t$) for the change in velocity to occur, you can use the following equation:

$a=\frac{v-u}{t}$

where:

• $a$ is the acceleration of the object
• $v$ is the final velocity
• $u$ is the initial velocity
• $t$ is the time interval

Simply plug in the values of the final velocity, initial velocity, and time interval into the equation to calculate the acceleration.

However, if you only know the velocity at a specific instant and don't have information about the initial velocity or the time interval, you won't be able to directly determine the acceleration. Acceleration is defined as the rate of change of velocity, so it requires additional data to calculate accurately.