Question

A miss hit golf ball flies straight up in the air. Exactly 4.0 seconds later it lands right next to the tee. How high up did the golf ball go?

Answer 1

19.6 m

Step-by-step explanation:

Total time of flight = 4.0 s ( given)

The time taken by gold ball to rise to the highest point =
`t=(4.0 s)/(2) = 2.0 s`

At highest point , final velocity would be = 0

Initial velocity can be calculated using the equation: v = u+at

⇒-u = -gt ⇒ u = gt

The distance to the highest point can be calculated as follows:

s = u t+0.5 at²

s = (gt)t +0.5 (-g)t²

s = 0.5 gt²

s = 0.5 (9.8)(2.0)²

s = 19.6 m