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acceleration due to gravity lab question: does acceleration due to grav…

Question

acceleration due to gravity lab
question: does acceleration due to gravity of a falling object stay constant?
hypothesis: i think acceleration due to gravity of a falling object will/will not stay constant.
circle the best answer above.
materials

  1. tennis ball
  2. golf ball
  3. timer
  4. meter stick
  5. tape

procedure: in this activity, you will calculate and compare the vertical accelerations of two objects with different mass.

  1. measure the mass of the tennis ball and the golf ball. record the mass in kilograms in the data table below.
  2. measure a vertical distance of 2 meters from the floor and mark the distance with tape. this will be the drop - height that you use for each trial.
  3. hold the tennis ball so that its bottom is at the 2 - meter mark.
  4. drop the ball and record the amount of time it takes to hit the floor before it bounces back up. repeat this step for a total of five trials. record the data in the data table, using the same ball and the same drop - height distance.
  5. repeat steps 3 - 4 for the golf ball.
  6. calculate the average time for each ball, using all five trials, and record in the data table.

data table

objectmass (kg)height (m)trial 1 (s)trial 2 (s)trial 3 (s)trial 4 (s)trial 5 (s)average time (s)
golf ball2 m

calculations
use the time and the height to calculate acceleration due to gravity of each ball using the kinematics formula below:
calculate acceleration due to gravity in m/s².

Explanation:

Step1: Identificar la fórmula cinemática

La fórmula para la distancia en un movimiento uniformly - acelerado es $d = v_0t+\frac{1}{2}at^2$. En el caso de un objeto cayendo desde el reposo ($v_0 = 0$), la fórmula se simplifica a $d=\frac{1}{2}at^2$, donde $d$ es la distancia recorrida, $a$ es la aceleración y $t$ es el tiempo. Re - arreglando para $a$, obtenemos $a=\frac{2d}{t^2}$.

Step2: Sustituir valores para cada objeto

Para cada objeto (tenis y golf), primero debes calcular la aceleración para cada ensayo usando la fórmula $a=\frac{2d}{t^2}$, donde $d = 2m$ (altura de caída). Luego, para calcular la aceleración media de cada objeto, sumas las aceleraciones de los cinco ensayos y las divides entre 5.

Step3: Analizar los resultados

Compara las aceleraciones medias de la pelota de tenis y la pelota de golf. Si son aproximadamente iguales, se puede concluir que la aceleración debida a la gravedad es constante para objetos con diferentes masas.

Answer:

Para calcular la aceleración debida a la gravedad de cada objeto:

  1. Para cada ensayo de cada objeto, usar $a_i=\frac{2\times2}{t_i^2}$ (donde $i$ es el número de ensayo).
  2. Calcular la aceleración media para cada objeto: $\bar{a}=\frac{\sum_{i = 1}^{5}a_i}{5}$.
  3. Comparar los valores de $\bar{a}$ para la pelota de tenis y la pelota de golf.