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The image contains three physics-related problems. Here's a breakdown of the tasks:

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**1. Memahami konsep besaran dan satuan (Understanding quantities and units)**  
In Newton's second law, the force \( F \) is calculated using the formula \( F = m \cdot a \), where \( m \) is mass and \( a \) is acceleration. If mass \( m \) is expressed in kilograms (kg) and acceleration \( a \) is in meters per second squared (m/s²), determine the unit and dimension for force.

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**2. Memahami besaran vektor dan skalar beserta operasi perhitungannya (Understanding vector and scalar quantities and their operations)**  
Given two vectors:  
\[ A = 2t \hat{i} + 3 \hat{j} - \hat{k} \]  
\[ B = -t \hat{i} + 4 \hat{j} + 2 \hat{k} \]  
Determine the following operations:  
a. \( A + B \)  
b. \( A - B \)  
c. \( A \cdot B \) (dot product)  
d. \( A \times B \) (cross product)

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**3. Memahami besaran-besaran pada kinematika gerak 1D (Understanding quantities in 1D kinematics)**  
Given a position function \( x(t) = 4t^2 + 3t + 2 \), where \( x \) is in meters and \( t \) is in seconds, determine:  
a. Velocity function \( v(t) \)  
b. Acceleration function \( a(t) \)  
c. The velocity and acceleration at \( t = 2 \, \text{seconds} \)

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Would you like me to work through the solutions for each of these? If so, please specify which one you'd like to start with, or I can solve them in order. Let me know if you have any specific questions!

Memahami konsep besaran dan satuan; Memahami besaran vektor dan skalar beserta operasi perhitungannya; Memahami besaran-besaran pada kinematika gerak 1D.

Solve physics problems on Newton's laws, vector operations, and 1D kinematics. This set includes force calculations, vector addition and cross products, and velocity and acceleration functions. Suitable for high school physics students.

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