Question

when a stone is dropped down a well, the distance fallen is given by D=4.9t^2 meters where t is the time taken in seconds

Answer 1

That is true.

Answer 2

That is true if D is in meters and g = 9.81 m/s^2

h = Hi -(1/2) g t^2 = Hi - (9.81/2) t^2 = Hi -4.9 t^2
So what?

Answer 3

[AI-generated answer — Explain Bot]

To find the distance fallen by the stone, you can use the equation D=4.9t^2, where D is the distance in meters and t is the time taken in seconds.

Let's say we want to find the distance fallen after a certain amount of time, let's say t=2 seconds.

Step 1: Start by substituting the value of t into the equation: D=4.9(2)^2.
Step 2: Simplify the equation: D=4.9(4).
Step 3: Perform the multiplication: D=19.6 meters.

Therefore, if the stone has been falling for 2 seconds, it would have fallen a distance of 19.6 meters.

You can use this equation to find the distance fallen by the stone at any given time by substituting the value of t into the equation and solving for D.