Show all work. A ball is in the air for a total time of 6 seconds. Draw adiagram and show work for full credit. Use g=-9.8 m/sec2 find the initial upward velocity of the ball in m/sec find the velocity of ball in m/sec at 4 seconds Find the maximum height of ball in meters Show all work. A ball is in the air for a total time of 6 seconds. Draw adiagram and show work for full credit. Use g=-9.8 m/sec2 find the initial upward velocity of the ball in m/sec find the velocity of ball in m/sec at 4 seconds Find the maximum height of ball in meters find the initial upward velocity of the ball in m/sec find the velocity of ball in m/sec at 4 seconds Find the maximum height of ball in meters
Explanation / Answer
total time = time taken toreach maximum height + time taken to reach from maximumheight to ground so t = 2u /g u = gt/2 = 9.8 x 6 / 2 = 29.4 m/s v = u +gt = 29.4+ (9.8 x 1) = 39.2 m/s maximum height H = u 2 / 2g = ( 29.4 x 29.4) / 2* 9.8 = 44.1 m