tolong di jawab iya

Em = Em
ep1 + ek1 = ep2 + ek2
mgh1 + 1/2mv1^2 =mgh2 + 1/2mv2^2
(semua m coret)
10*2 + 1/2* 10^2 = 10h + 1/2 * 2^2
20 + 50 = 10h + 2
10h = 70-2
h = 6,8m

EMA = EMB
EPA + EKA = EPB + EKB
mghA + 1/2 mvA² = mghB + 1/2 mvB²
(10 m/s²)(2 m) + 1/2 (10 m/s)² = (10 m/s²)h + 1/2 (2 m/s)²
h = 6,8 m