Math Problem Statement

Roda berputar dengan arah berlawanan jarum dengan laju 2 rad/detik. Pada saat t=0 titik p berada di posisi (1, 0) a. Tentukan kedudukan titik p setiap saat b. Tentukan koordinat Q disetiap saat c. Tentukan kecepatan gerak titik Q

Solution

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Circular Motion
Parametric Equations
Derivatives

Formulas

θ = ω * t (angular displacement formula)
x_P(t) = r * cos(θ) = cos(2t) (parametric equation for x-coordinate)
y_P(t) = r * sin(θ) = sin(2t) (parametric equation for y-coordinate)
v_Q(t) = d/dt[cos(2t)] = -2 * sin(2t) (velocity of Q)

Theorems

Basic Trigonometric Functions
Circular Motion Principles

Suitable Grade Level

Grades 10-12