Page 19 - Hybrid PBD KSSM 2021 Tg 5 - Fizik

Fizik Tingkatan 5 Bab 1

F = 6.1 cm = 24.4 N
F = 4 cm = 16 N
2

60°
O
F = 3 cm = 12 N
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9. Dengan kaedah lukisan berskala, tentukan magnitud dan arah daya paduan bagi daya-daya yang bertindak
terhadap suatu jasad seperti berikut:
Using the scale drawing method, determine the magnitude and direction of the resultant force of the force acting on a body as follows:
SP 1.1.2 TP2

(a) (b)

8 N
10 N

45° 120°
6 N
6 N
Penyelesaian / Solution
(a) Skala 1 cm : 1 N / Scale 1 cm = 1 N (b) Skala 1 cm : 1 N / Scale 1 cm = 1 N

13 cm
8 cm

8.8 cm
10 cm

45°
26°
6 cm
120°

83°
6 cm
Magnitud daya paduan Magnitud daya paduan
Magnitude of resultant force Magnitude of resultant force
= 13 × 1 = 13 N = 8.8 × 1 = 8.8 N
Arah daya paduan ialah 26° dengan arah daya Arah daya paduan ialah 83° dengan arah daya
mengufuk. mengufuk.
The direction of the resultant force is 26° with the direction of The direction of the resultant force is 83° with the direction of
the horizontal force. the horizontal force.

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Bab 1.indd 7 11/19/21 4:05 PM