The position vector of a projectile is described by:
Correct answer: B. Option B: A vector with components for both x and y directions
- A. Option A: The x-component of position vector
- B. Option B: A vector with components for both x and y directions
- C. Option C: The velocity vector of the projectile
- D. Option D: The acceleration vector of the projectile
Explanation
When considering motion in two dimensions, the position vector of a projectile is described by a vector with components for both horizontal (x) and vertical (y) directions. This allows us to track the projectile's position in a plane.Option A only considers the x-component, Option C refers to velocity instead of position, and Option D discusses acceleration, which are not directly related to the position vector in two dimensions.
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About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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