- #1

Ellio

- 19

- 1

- Homework Statement
- "Calculate the acceleration of the falling object with your research."

- Relevant Equations
- slope = Δy/Δx

x = 1/2 × a × t²

Hello I hope you are all very well !

So I have a practical work in physics.

The experiment was to release a long tape with a mass of 40g at the end from a certain height. An instrument would hit the tape 50 times/s and put a mark each time. From that we had to do a graph x(t²) and a series of exercises.

1) The slope of the graph ≅ 4,707 (0,610/0,1296)

2) 4,707 = 1/2 × a × 1

<=> a = 9,414

It may sound like a stupid question but why is my result not equal to 9,81 ? 9,81m/s² is the acceleration of all object falling on the surface of the Earth right ?

What did cause this inequality of 4% ?

So I have a practical work in physics.

The experiment was to release a long tape with a mass of 40g at the end from a certain height. An instrument would hit the tape 50 times/s and put a mark each time. From that we had to do a graph x(t²) and a series of exercises.

1) The slope of the graph ≅ 4,707 (0,610/0,1296)

2) 4,707 = 1/2 × a × 1

<=> a = 9,414

It may sound like a stupid question but why is my result not equal to 9,81 ? 9,81m/s² is the acceleration of all object falling on the surface of the Earth right ?

What did cause this inequality of 4% ?