2 Balls are thrown from a running train ball A just dropped while ball B is thrown horizontal outwards. Which will reach the ground earlier?
Correct answer: B. Ball B
- A. Ball A
- B. Ball B
- C. Both ball A and B
- D. insufficient data
Explanation
The vertical acceleration is same for both balls due to gravitational acceleration which being the same for both balls.
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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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