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Many students who study using our platform have reported that a large number of the practice questions here are very similar to those that appear in real exams. View Courses
Many students who study using our platform have reported that a large number of the practice questions here are very similar to those that appear in real exams. View Courses
A ball is dropped from a tall building. Ignoring air resistance, what happens as it falls?
Correct Answer: C. Its velocity increases while acceleration remains constant.
As the ball falls, gravity provides a constant acceleration of 9.8 m/s² downward. This constant acceleration means velocity increases uniformly—by the same amount each second—until impact. Since air resistance is ignored, acceleration doesn’t change with time. This consistent gravitational pull is a fundamental principle of free fall, where the speed of the falling object continually increases while acceleration remains constant throughout the motion.
Why Other Options are Incorrect:
A. Its velocity decreases while acceleration remains constant is incorrect because velocity actually increases downward under gravity, not decreases.
B. Both velocity and acceleration remain constant misstates the concept. Constant acceleration means velocity must change continuously.
D. Its velocity and acceleration both increase is wrong because acceleration due to gravity is fixed at 9.8 m/s². Only velocity increases with time.
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