At a baseballgame Will hits the ball. After 3,8 seconds the ball gets caught. Below are the charts of the projectile motions. v_{x} is the horizontal component of the velocity of the ball while v_{y} is the vertical component of the velocity of the ball,

a. At t = 1,8 seconds the ball reaches a maximal height of H m. Around this point of time the line of the v_{y} chart is basically straight, because the vertical accelaration is nearly constant. What is the acceleration and why is this basically constant.

b. At t = 3,8 the movement/displacement in the horizontal direction is X m. What is the value of X?

c. At t = 3,8 the movement/displacement in the vertical direction is Y m. Explain how you can calculate the value of Y?

d. At the moment the ball gets caught, the movement/displacement is equal to Z m. The coach of Will makes estimation of the value of Z using X = 100, Y = 1 and H = 20. Explain with which value of Z the estimation of the coach becomes legit.

*English isn't my native language, I'm sorry if any of the terms aren't correct :(*

Guest Jan 10, 2020

#1**+1 **

Do you have the chart?

1 Acceleration in the y direction is constant and equal to Earth's gravity (-9.81 m/s^2) ....no other acceleration is involved.

ElectricPavlov Jan 10, 2020