Two points, L and N, are 160 m apart. M

Berikut ini adalah pertanyaan dari diegosusanto15 pada mata pelajaran Matematika untuk jenjang Sekolah Menengah Atas

Two points, L and N, are 160 m apart. M lies onthe straight line joining L and N. An object travels
from L to M at an average speed of 10 m/s in
6 seconds and then from M to N at an average
speed of 25 m/s. Find the average speed of the
object for its entire journey from L to N.

Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

Jawaban:

16m/s

Penjelasan dengan langkah-langkah:

Known:

Length L-M-N = 160m

Time L-M = 6s

Speed L-M = 10m/s

Speed M-N = 25m/s

Asked:

Average Speed L-M-N

Solution:

We know that L, M, and N are located in the same line and M is located between L and N, so from L, we will have to go to M first then to N, meaning Length L-M-N will be equal to Length L-M + Length M-N.

Length L-M = 10m/s * 6s = 60m

Length M-N = 160-60 = 100m

Time M-N = 100m ÷ 25m/s = 4s

Average Speed = (Speed 1 + Speed 2) / (Time 1 + Time 2)

Average Speed L-M-N = (Length L-M + Length M-N) /(Time L-M + Time M-N)

Average Speed L-M-N = (60+100)/(6+4) = 160/10

= 16m/s

Semoga dengan pertanyaan yang sudah terjawab oleh bry21 dapat membantu memudahkan mengerjakan soal, tugas dan PR sekolah kalian.

Apabila terdapat kesalahan dalam mengerjakan soal, silahkan koreksi jawaban dengan mengirimkan email ke yomemimo.com melalui halaman Contact

Last Update: Wed, 02 Aug 23