An object is thrown vertically into the air. Which of the following four graphs represents the velocity' (v) of the object as a function of the time (t)? The positive direction is taken to be upward.
Correct answer: C. Option C
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
When an object is thrown vertically upward its velocity decreases to zero and then it moves downward its velocity increases in reverse direction.
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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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