The train is 100 M long and it takes 30 seconds to cross the 400 M bridge. What is the speed of the train?
1. The train is 100 M long and it takes 30 seconds to cross the 400 M bridge. What is the speed of the train?
s=100+400=500. t=30
v=s/t=500/30=16⅔ M/sec
2. A pendulum takes 10 seconds to swing through 2 complete cycles. how long does it take to complete one cycle? what is its frequency?
t = 5s
f = 0,2 Hz
Penjelasan:
10 seconds for 2 complete cycles (2 oscillations)
Thus , 1 complete cycle (1 oscillation) , t = 5s
frequency , f = 1/t
f = 1/5s
f = 0,2 Hz
3. When completing an online shopping transaction, a typical shopper takes 30 seconds to select each product and another 56 seconds to complete the check-out process. If it takes 296 seconds to complete a transaction, how many products are being purchased? Write and solve an equation to find the answer.
Jawaban:
8 Products
Penjelasan dengan langkah-langkah:
1 product = 30 second
complete the check-out process = 56 second
Total time spent = 296 second
products(30 second) + time to complete the check-out process (56 second) = 296 second
Products(30) + 56 = 296
Products(30) = 296 - 56
Products(30) = 240
products = 240/30
Products = 8
4. A train of length 250 m travelled through a tunnel at a constant speed of 18 m/s. It took 1 minute 45 seconds for the entire train to pass through the tunnel. What is the length of the tunnel in kilometres?
Jawaban:
The length of the tunnel in kilometers is 0,25 Km
Semoga membantu
5. Bantu lagi pts nih Andin : Travelling by train to Bandung is comfortable. But it takes 6 hours from here to Bandung Dika : Yes. And it takes only 5 hours by bus. Andin : So travelling by... to Bandung bus is faster thanby train train is faster than by bus bus is slower than by train train is slower than by bus
Jawaban:
train is slower than by bus
Penjelasan:
kereta membutuhkan waktu 6 jam utk ke Bandung
sedangkan bis membutukan waktu 5 jam utk ke Bandung
jadi lbh menggunakan kereta lbh lama daripada menggunakan bis.
smg membantu, mmf jika salah.
6. the earth takes....takes hours or one day to complete a spin
Jawaban:
24 hours
Penjelasan:
semoga membantu
Jawaban:
24 hours
Penjelasan:
harap membantu
7. the average spoken sentence in conversational English takes 2,5... A. For to complete B. Completing C. To complete D. By completing E. It completing
C. To complete.
Semoga membantuC. To complete
moga membantu
8. In the UK, it takes several weeks for the authorities to ... probate
Jawaban:
Finish the probate
Maaf kalo salah
9. It takes 2 hours for Sally to clean room while it takes 4 hours for Jean to clean room. if they work together, how long they would need?
Jawaban:
it takes 2 hour or less
Penjelasan:
2-4= 2
but if we work together it will probably finish sooner
10. It was ………… late to catch the train. the correct word to complete the sentence is …………. *
Jawaban:
too
too artinya terlalu, berarti jika diartikan secara keseluruhan jadinya "Sudah terlalu terlambat untuk mengejar kereta"
semoga benar kak. jadikan brainliest ya thank you.
11. A train moved from a station at 09.00. It accelerated its velocity within 30 seconds to reach 30 m/s. After that it moved with constant speed for 3 hours. Upon arriving, it slowed down in 3 minutes. What will be the total displacement of the train?
Jawaban:
327150 m atau/or 327,15 km
Penjelasan:
accelerate
acceleration = 30/30 = 1m/s²
Vf² = Vo² +2aΔx
900 = 0 + 2·1·Δx
900÷2 = Δx
450m = Δx
Constant
Δx = V · t
Δx = 30 · 10800(seconds)
Δx = 327150m
arriving
acceleration = -30/180 = - 1/6
Vf²=Vo²+ 2aΔx
0 = 900 + 2·(-1/6)·Δx
Δx= 900·3
Δx = 2700 m
total = 327150 m
12. A train travelling at 160km/h takes 5 hours for a journey. How long would it take a train travelling at 200 km/h?
Jawaban:
4 hours
Penjelasan dengan langkah-langkah:
160km/h x 5 hours = 800km
if the distance is 800km
so, 800km : 200km/h = 4 hours
13. The university is four station i wan from the downtown ifa train stops at each station for 1 minute and takes 2 minutesto travel from one station to another how long will it takefor the train to reach the downtown from the university?tolong artinya sama jawabannya dong
Jawab:
10 MEN1T
Penjelasan dengan langkah-langkah:
Universitas adalah empat stasiun yang saya inginkan dari pusat kota jika
kereta berhenti di setiap stasiun selama 1 menit dan membutuhkan waktu 2 menit
untuk melakukan perjalanan dari satu stasiun ke stasiun lainnya berapa lama waktu yang dibutuhkan
untuk kereta mencapai pusat kota dari universitas?
Caranya = 1 + 2 + 1 + 2 + 1 + 2 + 1 = 1 × 4 + 2 × 3
= 4 + 6 = 10
Maaf Kalo Salah : )
arti:
Universitas adalah empat stasiun yang saya inginkan dari pusat kota jika kereta berhenti di setiap stasiun selama 1 menit dan membutuhkan waktu 2 menit untuk melakukan perjalanan dari satu stasiun ke stasiun lainnya berapa lama waktu yang dibutuhkan untuk kereta mencapai pusat kota dari universitas?
jawab :
(4×2)+(4×1)= 12menit
so it took 12 minutes for trains reaching the city center from the university
14. A : I'd like some information about the trains.B : Yes?A : Could you tell me what time the train to Miami leaves?B : Yes, the next train leaves at 11.00am.A : _______________ how long it takes?B : Let me see. It takes 28 hours. The suitable expression to complete the dialogue is …
Jawaban:
Do you know
Penjelasan:
15. Complete the dialogue below (for questions number 7 and 8) Arya : I'd like some information about the trains.Bara : Yes?Arya : Could you tell me what time the train to Miami leaves?Bara : Yes, the next train leaves at 11.00am.Arya : _______________ how long it takes?Bara : Let me see. It takes 28 hours.The suitable expression to complete the dialogue is … *
Jawaban:
According to you
Penjelasan:
16. arti blend it for 5 to 10 seconds
blender selama 5-10 detik, bisa juga campurkan tergantung kakimatCampurkan selama 5 sampai 10 detik
Semoga membantu:)
17. it takes on hour to drive to the airport it takes on hour to fly to chicago in other word ,it takes .......
one hour to drive to the airport and fly to chicago
18. yogyakarta-dewi-train-a-takes-to
Jawaban:
Dewi takes a train to Yogyakarta
Maaf kalo salah:)
19. It takes 2 hours for Sally to clean room while it takes 4 hours for Jean to clean room. if they work together, how long they would need?
Jawaban:
1 jam 20 menit
Penjelasan:
[tex]time = \frac{sally \times jean}{sally + jean} [/tex]
[tex] = \frac{2 \times 4}{2 + 4} [/tex]
[tex] = \frac{8}{6} = \frac{4}{3} jam[/tex]
[tex] \frac{4}{3} jam \times 60 = 80menit[/tex]
80 menit = 1 jam 20 menit
20. Beth is taking the train to see her boyfriend on Valentine's day! The train is 100 meters long and it takes 30 seconds to cross a 400m bridge. What speed is the train going at?
The train is 100 meters long and it takes 30 seconds to cross a 400m bridge. The train is going at speed [tex]\bole{13\frac{1}{3}}[/tex] m/s
Pada soal ini kita akan mempelajari tentang jarak, waktu dan kecepatan
Rumus :
v = s ÷ t
s = v x t
t = s ÷ v
Dimana :
s = jarak / distance
v = kecepatan / speed
t = waktu / time
Pembahasan :Diketahui :
t = 30 s
s = 400 m
Ditanya :
v = ?
Dijawab :
Kita cari kecepatannya dengan rumus jarak
v = s ÷ t
v = 400 ÷ 30
v = [tex]13\frac{1}{3}[/tex] m/s
∴ Jadi kereta berjalan dengan kecepatan [tex]13\frac{1}{3}[/tex] m/s
Pelajari lebih lanjut :Soal-soal tentang jarak, waktu dan kecepatan :
1. https://brainly.co.id/tugas/21426097
2. https://brainly.co.id/tugas/21434358
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Detail Jawaban :Kelas : V
Mapel : Matematika
Bab : Bab 2 - Pengukuran sudut, waktu, jarak dan kecepatan
Kode : 5.2.2
Kata kunci : train, cross, bridge, speed
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