Which of the following is not an example of projectile motion ?
Correct answer: A. a gas filled ballon
- A. a gas filled ballon
- B. bullet fired from gun
- C. a football kicked
- D. a base ball shot
Explanation
A projectile moves mainly under gravity after being launched, as do a fired bullet, kicked football and hit baseball. A gas-filled balloon is supported and propelled by buoyancy and air forces rather than following ordinary projectile motion, so the likely trap is option b, which is a genuine projectile example.
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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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