In projectile motion, at maximum height:
Correct answer: D. vx = Constant, vy = 0
- A. vx = 0, vy = Constant
- B. vx = Constant, vy = Constant
- C. vx = 0, vy = 0
- D. vx = Constant, vy = 0
Explanation
At the highest point of projectile motion, the vertical velocity is equal to 0 (Vy = 0) and horizontal velocity will be constant (vx = constant).
This question appeared on the NUMS 2021 paper, which you can sit online with every answer explained.
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About Projectile Motion
Projectile motion combines uniform horizontal motion with vertically accelerated motion under gravity, assuming air resistance is neglected. Questions use the components of initial velocity to find time of flight, maximum height, horizontal range and position, while distinguishing projectile motion from general circular or one dimensional motion.
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