Question

Tolong dog no 18.... sekaluan caranya....

Answer 1

Diket:
m = 100 kg
vo = 20 m/s
vt = 30 m/s
t = 5s
s = 200 m
Dit: W.....?
a = (vt - vo)/t
a = (30-20)/5
a = 2 m/s²
,
W = F.s
W = ma.s
W = 100 x 2 x 200
W = 40000 J
W = 4x10^4 J --> B