How far will a brick starting from rest fall freely in 3 seconds

The brick will cover a distance of .

Explanation:

Given: A brick starting from rest fall freely in 3 seconds.

As mentioned in question,

When an object falls freely then its initial speed will be .

Acceleration due to gravity is .

Time

Using the laws of motion:

Substiuting all the values we get:

Therefore, the brick will cover a distance of .

Learn more about laws of motion here:

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When object falls freely we can say

its initial speed will be ZERO

and its acceleration due to gravity must be

Now we need to find the distance of free fall in 3 s of time

So here we will use kinematics

now we will plug in all values in it

So it will fall by total distance of 44.1 m

we need to know the time interval during which the force acts. impulse of force = momentum change

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me