Jawapan

2016-02-07T22:10:28+08:00
  • Adl
  • Bercita-cita tinggi
2016-02-11T12:58:55+08:00
1/2 mv^2 = mgh
1/2 v^2 = gh
g = 10
h = 5
1/2 v^2 = 50
v^2 = 100
v = √ 100
v = 10 ms-1