The problem involves a ball being thrown downward with an initial velocity from a specified height, and participants are tasked with determining the time it takes for the ball to hit the ground and its final velocity upon impact.
The discussion is ongoing, with participants sharing their attempts and questioning the results they obtained. There is a suggestion to use the quadratic formula, indicating that multiple approaches are being explored without a clear consensus on the correct method yet.
There appears to be confusion regarding the application of kinematic equations and the simplification for time, with participants noting discrepancies in their results.
reltz said:Homework Statement
A student throws a ball downward at a velocity of 8.0m/s from a height of 25m. How long until it hits the ground? What is the velocity of the ball as it hits the ground.
Homework Equations
What is thee formula when simplifying for T(time)?
The Attempt at a Solution
When using the formula d=ViT + 1/2a*d I get 3.4s, but the answer is 1.6s.
reltz said:now I am still getig high answers... how do i simplify for t?