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e = √ [h₂/h₁]
Perbandingan ketinggian pantul tumbukan antara dua jenis e
e' √ [h₂' / h₁]
--- = -------------
e √ [h₂ / h₁]
0,5 √ [h₂' / h₁]
----- = ------------
1 √ [[h₂ / h₁]
1 √ h₂'
--- = --------
2 √h₂
h₂' 1
--- = ---
h₂ 4
jadi perbandingan ketinggian pantul setelah tumbukan dengan tanah adalah 1 : 4