Question Detail
Question
A 0.2-kilogram red ball is thrown horizontally at a speed of 4 meters per second from a height of 3 meters. A 0.4-kilogram green ball is thrown horizontally from the same height at a speed of 8 meters per second. Compared to the time it takes the red ball to reach the ground, the time it takes the green ball to reach the ground is
Correct Answer
Option B is the correct answer.
Detailed Explanation
Time to fall depends only on vertical motion (height and gravity), not on horizontal speed or mass. Both balls fall from same height, so time is the same.
Hint
Vertical and horizontal motions are independent.