You don't have to answer all of these....answering even one would be a huge help. I just really do not understand these. Thank you so much for your time! I really appreciate it!
a. How would you estimate the time it takes for a ball thrown up with a velocity of 15 m/s to reach its highest point? What is its highest point?
b. Estimate the final velocity of a ball thrown down initially with a velocity of 15 m/s if it falls for 10 seconds. Please explain your reasoning.
c. What is the average velocity of this ball on its way up to its highest point?
d. How long does it take for the ball to reach the ground from its highest point?
THANK YOU SO MUCH. I just don't understand how to do this and I badly need help. Thanks again!
Thanks!
2006-12-12 13:59:06 · 2 answers · asked by susie q 2 in Science & Mathematics ➔ Physics
This is conceptual physics...and what does d mean when y'all use that in equations?
2006-12-12 14:18:55 · update #1
You need to know your equations - lets list a few
d = vt (constant velocity)
v = at (constant acceleration)
1/2at^2 = d (constant acceleration)
You must memorize these.
So now take problem a) You know v = 15m/s and the Earth's acceleration a = 9.8m/sec^2 so use the last equation and solve for t. This will give you the time to reach the peak. Then you can figure the highest point for a) by using the time you just figured out and equation 2) to find d. This will be the highest point.
The other problems are solved similarly.
2006-12-12 14:11:33 · answer #1 · answered by rscanner 6 · 0⤊ 0⤋
Is this a conceptual physics course or is this a physics for science and engineers...
I just want to know if I can show you with kinematic equations or conceptual explanation
2006-12-12 22:06:41 · answer #2 · answered by ? 3 · 0⤊ 0⤋