[填空题]
A bouncy ball is dropped out of a second storx(ipzzr85 nj*zj.9 fvy c6l;w)pb)a i bzlassroom window, 5m off the ground. Every time the ball hits the ground it bounces 89% z)bwpi;ba 6l )of its previous height.
1.Find the height the ball reaches after the 2nd bounce.
$u_2$≈ m.
3.Find the total distance the ball has travelled when it hits the ground for the 5th time.
The total distance travelled by the ball is approximately metres.
