A golf ball is struck at ground level. The speed of the golf ball as a function of the, where t = 0 at the instant the ball is struck and intial velocity is 31 m/s. The golf ball hits the ground when t = 2.5 and v = 19, and then v increases as the ball rises back into the air. How far does the golf ball travel horizontally before returning to ground level? What is the maximum height above ground level attained by the ball?
Please help...last question, I promise :)
Nothing is stated about the nature of the reaction when hitting the ground. I would be very relcutant to say this is an elastic collision.
what does that mean??
winterWX, I believe, misinterpreted the question. Your question looks similar to Chapter 4 problem 42 in Halliday/Resnick/Walker Fundamentals_of_Physics, which can be seen on page 79(22 of 29) at media(decimal)wiley(decimal)com(slash)product_data(slash)excerpt(slash)19(slash)04717580(slash)0471758019-1(decimal)pdf. The question refers to a graph which shows v(m/s) as a function of time. At times t=0, t=2.5 and t=5 respectively, v(0) = 31 m/s, at v(2.5) = 19 m/s, and v(5) = 19 m/s. So the ball does not hit the ground at 2.5 seconds, rather it reaches maximum height where the velocity is lowest. Furthermore, the questions How far does the golf ball travel horizontally before returning to ground level? and What is the maximum height above ground level attained by the ball? I do not know how to solve these questions, therefore I am posting the correct question. Any help would be appreciated. Thank you.
winterWX, I believe, misinterpreted the question. Your question looks similar to Chapter 4 problem 42 in Halliday/Resnick/Walker Fundamentals_of_Physics, which can be seen on page 79(22 of 29) at media(decimal)wiley(decimal)com(slash)product_data(slash)excerpt(slash)19(slash)04717580(slash)0471758019-1(decimal)pdf. The question refers to a graph which shows v(m/s) as a function of time. At times t=0, t=2.5 and t=5 respectively, v(0) = 31 m/s, at v(2.5) = 19 m/s, and v(5) = 19 m/s. So the ball does not hit the ground at 2.5 seconds, rather it reaches maximum height where the velocity is lowest. Furthermore, the questions How far does the golf ball travel horizontally before returning to ground level? and What is the maximum height above ground level attained by the ball? I do not know how to solve these questions, therefore I am posting the correct question. Any help would be appreciated. Thank you.