bab 1 supiyanto 1

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Kunci Jawaban SMA Supiyanto 1

Bab 1 Besaran dan Satuan

LATIHAN 1A1.v = 10 m/s

=

= 36 km/jam

2.

= 100 km/jam

=

= 54 knot

3.Dalam notasi ilmiah:

123 000 000 000 m = 1,23 1011 m

0,000 000 021 kg = 2,1 10-8 kg

4.s = 3,801 106 km

a. Dalam satuan mm

s = 3,801 106 km

= 3,801 1012 mm

= 3 801 000 000 000 mm

b. Dalam satuan cm

s = 3,801 106 km

= 3,801 1011 cm

= 380 100 000 000 cm

5.F = k x

Dimensi dari konstanta k adalah

=

6.a.

MLT-2

b. =

L =

L LT-2 Tidak benar

c.

MLT-1 = MLT-1 Benar

LATIHAN 1B

1.a.

Besar vektor resultan

R =

=

=

= 10 m/s

b.

Besar vektor resultan

R =

=

=

= 100 km/jam2.

50 m

120 mR

R =

=

= 130 m

3.F1 = 100 N dan F2 = 300 N = 60o

Besar resultan gaya

FR =

=

= 100 N4.F = 200 N membentuk sudut 45o terhadap sumbu

horizontal

Fx = F cos

= 200 cos 45o

= 200

Fy

F

Fx

Fy = F sin

= 200 sin 45o = 200

5.

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