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Questions and Answers
What is the minimum number of dimensions required to describe projectile motion?
What is the minimum number of dimensions required to describe projectile motion?
- 4
- 2 (correct)
- 1
- 3
What is the vector quantity that has both magnitude and direction?
What is the vector quantity that has both magnitude and direction?
- Speed
- Velocity (correct)
- Acceleration
- Displacement
What is the unit of acceleration in SI system?
What is the unit of acceleration in SI system?
- m/s^2 (correct)
- m/s
- kg/m^2
- N/m
What is the dimension of time?
What is the dimension of time?
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What is the type of motion that occurs when an object moves in a straight line?
What is the type of motion that occurs when an object moves in a straight line?
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Study Notes
Motion Fundamentals
- Projectile motion requires a minimum of 2 dimensions to describe it (x and y coordinates).
Vector Quantities
- A vector quantity is a physical quantity that has both magnitude (amount of movement) and direction.
Units and Dimensions
- The unit of acceleration in the SI system is meters per second squared (m/s²).
- Time is a dimension, and its unit in the SI system is the second (s).
Types of Motion
- Rectilinear motion is a type of motion where an object moves in a straight line.
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