The vertical component of velocity of projectile, during its motion, is minimum:
Correct answer: B. At the highest point of its trajectory
- A. At the time of projection
- B. At the highest point of its trajectory
- C. Just before hitting the plane of projection
- D. None of the above
Explanation
At the highest point of its trajectory (option B), the vertical component of velocity becomes momentarily zero. This is because, at the highest point, the projectile reaches its peak vertical position and starts descending. At this point, all of the initial upward velocity has been used to overcome gravity, and the projectile's vertical velocity becomes zero before it starts descending.
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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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