Jawaban:
1.
Vt = Vo - gt
t = 3 s (setengah waktu pergi pulang 6 s)
Vt = 0 (titik tertinggi)
g = 10 m/s²
0 = Vo - 10x 3
Vo = 30 m/s
2.
perlambatan CD
a = (v2 - v1)/(t2 - t1) = (0 - 10)/(17-15) = -10/2 = -5 m/s²
3.
Vo = 50 m/s
a.
0 = 50 -10t
t = 5 s
b.
S = Vot - 1/2 gt²
S = 50x5 - 1/2 x 10x 5² = 125 m
c.
Vt = 50 - 10x2 = 30 m/s
4.
Rb = 2Ra
Wa = 20 rad/s
Va = Vb
Wa Ra = Wb Rb
20 Ra = Wb x 2Ra
Wb = 10 rad/s
*maaf bila tak benar
*biasakan cari jawaban lain utk dibandingkan
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Jawaban:
1.
Vt = Vo - gt
t = 3 s (setengah waktu pergi pulang 6 s)
Vt = 0 (titik tertinggi)
g = 10 m/s²
0 = Vo - 10x 3
Vo = 30 m/s
2.
perlambatan CD
a = (v2 - v1)/(t2 - t1) = (0 - 10)/(17-15) = -10/2 = -5 m/s²
3.
Vo = 50 m/s
a.
Vt = Vo - gt
0 = 50 -10t
t = 5 s
b.
S = Vot - 1/2 gt²
S = 50x5 - 1/2 x 10x 5² = 125 m
c.
Vt = Vo - gt
Vt = 50 - 10x2 = 30 m/s
4.
Rb = 2Ra
Wa = 20 rad/s
Va = Vb
Wa Ra = Wb Rb
20 Ra = Wb x 2Ra
Wb = 10 rad/s
*maaf bila tak benar
*biasakan cari jawaban lain utk dibandingkan
Penjelasan: