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Verified answer
Materi : GayaDiketahui :
m = 70 kg
F = 40 N
Ditanya :
a) N dan a
b) a = ? jika Fges = 30 N
Penyelesaian :
a) ΣFy = 0
N - W = 0
N = W
N = mg
N = (70)(10) = 700 N
F = ma
40 = 70a
a = 4/7 = 0,57 m/s²
b) ΣFx = ma
F - fges = ma
40 - 30 = 70a
10 = 70a
a = 1/7 = 0.14 m/s²
semoga membantu
ㅡ :)
Verified answer
Dinamika Partikel.a)
Jika lantai licin , maka keadaan Fges = 0 . dan anggap benda bergerak searah sb x , maka gaya yang searah sb. y akan sama dengan 0
sigma F sb y = 0
N - w = 0
N = w
N = mg
N = 70(10)
N = 700 N
sigma F sb x = m . a
40 = 70a
a = 40/70 ≈ 0,58 m/s²
b)
Karena ada gaya gesek 30 N, maka pakai hk newton 2
sigma F sb x = ma
F - Fges = 10a
40-30 = 70a
10 = 70a
a = 10/70 ≈ 0,14 m/s²
smgmbntu dn maaf bila salah:)