Page 15 - PRAKTIS HEBAT MATHS TG 2

Matematik Tingkatan 2 Jawapan

B 4. (a) (i) 380 saat / 380 seconds
26
(ii) 47 m/s
1. 2 (b) 3 27
m/s km/j m /minit mm/s 2 4
km/h m /minute 5. (a) (i) 14 9 m/s
2
m/minit km/j 2 cm/s 2 (ii) 0.05 km/j per saat / 0.05 km/h per second
m/minute km/h 2 km/s (b) Masa yang diambil / Time taken:
Bas / Bus A = 4.4 jam / hours
Bas / Bus B = 3.75 jam / hours
2. Bas / Bus C = 3.58 jam / hours
Bas / Bus D = 3.02 jam / hours
• Bas D mengambil masa paling singkat untuk tiba di
Laju seragam destinasinya.
•
• Uniform speed Bus D takes the shortest time to reach its destination.
KBAT
• Laju tak seragam
• 36 km/j / 36 km/h
Non-uniform speed
•
Prakt is PT 3 Kecerunan Garis Lurus
10
3. (a) 3 Gradient of a Straight Line
(b) ✗
(c) ✗
(d) 3 A
4. (a) 23 m/s 1. D 2. C 3. C 4. A 5. A
(b) 25 m/s 6. D 7. A 8. B 9. A 10. D
(c) 10 saat / seconds
(d) 0.2 m/s B

C 1. Jarak Jarak
mencancang mengufuk
1. (a) (i) Jarak yang dilalui dalam masa 1 saat ialah Vertical Horizontal
5 meter.
The distance travelled in 1 second is 5 metres. distance distance
(ii) Jarak dan masa Rajah / Diagram (i) 3 m 4 m
Distance and time
(b) (i) 33 km/j / 33 km/h Rajah / Diagram (ii) 2 unit / units 7 unit / units
(ii) (a) 17.5 km
(b) 60 km/j / 60 km/h 2.
(c) Nyahpecutan = 25 cm/s per saat Positif
Deceleration = 25 cm/s per second Positive
Kelajuan objek itu berkurang sebanyak 25 cm/s
setiap saat. Negatif
The speed of the object decreases 25 cm/s for Negative
every second.
2. (a) Laju Julius / Speed of Julius = 10 m/s Sifar
Laju Hashim / Speed of Hashim = 10.17 m/s Zero
Laju Chong / Speed of Chong = 10 m/s Tak tertakrif
Laju Bala / Speed of Bala = 9.6 m/s Undefined
Hashim adalah yang paling pantas. / Hashim is the
fastest.
(b) 80 km/j / 80 km/h 2 3. (a) (i) AB 3
2
8 (ii) EF 3
(c) 6 m/s
77
3. (a) –1.6 m/s 2 (b) (i) Tak tertakrif / Undefined

(ii) Sifar / Zero
(b) 40 cm/s
b
(c) (i) Pecutan = 2 km/j per saat 4. (a) – (b) – q
Acceleration = 2 km/h per second a p
(ii) Nyahpecutan = 8 km/j per saat (c) –12 (d) 10
Deceleration = 8 km/h per second
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15 JAW HEBAT Mate Tg2.indd 7 27/04/2020 10:50 AM