Question

Yang tau tolong dijawab yaah Jelasin pke cara kerja nya.
Trimakasih

Answer 1

Diket:
m = 40kg
panjang papan (s) = 8m
tinggi (h) = 2m
g = 10m/s²
Dit:
a. Usaha (W)....?
b. Keuntungan mekanik (Km)....?
c. Gaya kuasa (Fk)....?
jawab:
a. W = F x s
W = m x g x s
W = 40 x10 x 8
W = 400 x 8
W = 3200 J
,
b. Km = s/h
Km = 8/2
Km = 4

c .

Fk =  F h / s
Fk = (400 x 2) / 8
Fk = 800/8
Fk = 100 N