Tolong yaa fisika:):)

Gunakan konsep energi mekanik,
Em1 = Em2
Ek1 + Ep1 = Ek2 + Ep2
1/2mv1² + mgh1 = 1/2mv2² + mgh2 (coret m)
1/2(5)² + 10.4,2 = 1/2(8)² + 10.h
12,5 + 42 - 32 = 10 h
h = 22,5/10
h = 2,25 m