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Vectors - Enrichment

Vectors Problem 1

physics.fisikastudycenter.com, high school vectors tutorial. In this tutorial we'll see how to find the angle between two vectors.

Question
Given two vectors F1 and F2 that are forming an angle (θ). If F1 = F2 = R, where R is the resultant of the two vectors, find the magnitude of θ !
(Dua buah vektor yang besarnya F1 dan F2 memiliki titik tangkap sama. Jika F1 = F2 = R (dengan R adalah resultan kedua vektor tersebut), tentukan besarnya sudut apit antara dua vektor tersebut !)
a. 30°
b. 45°
c. 60°
d. 90°
e. 120°

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Kinematics - Enrichment

physics.fisikastudycenter.com,- Kinematics and kinematics with vectors analysis, enrichment problems for high school students grade 11, problem 1. Id: Kinematika dan Kinematika dengan analisis vektor Kelas 11 SMA, contoh soal dan pembahasan jawaban.

Problem 1
A particle with electric charge in it travels in a straight motion with an initial velocity of 100 m s−1. The particle is accelerated by an electrical force with an acceleration of a = (2 – 10t) m s−2 where t is the time when the force is working. Find the the velocity when t = 4 sec!
Sebuah partikel bermuatan listrik mula-mula bergerak lurus dengan kecepatan 100 m s−1. Karena pengaruh ga ya listrik, partikel mengalami percepatan yang dinyatakan dengan persamaan a = (2 – 10t) m s−2 (t adalah waktu lamanya gaya listrik bekerja). Kecepatan partikel setelah gaya bekerja selama 4 sekon adalah …
A. 24 m s−1
B. 28 m s−1
C. 32 m s−1
D. 36 m s−1
E. 40 m s−1
Question source: EBTANAS Fisika 1997

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Electrostatics - Enrichment

physics.fisikastudycenter.com,- Electrostatics (Listrik Statis), enrichment problems for high school students grade 12, problem 1. This problem is taken from Indonesian colleges entrance examination.

Problem 1


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