Q. Two identical metal spheres are released from the top of a tower after $t$ seconds of each other such that they fall along the same vertical line. If air resistance is neglected, then at any instant of time during their fall
A) The difference in their displacements remains the same
B) The difference between their speeds remains the same
C) The difference between their heights above ground is proportional to $t^{2}$
D) The difference between their displacements is proportional to $t$
Explanation
The correct answer is Option B: The difference between their speeds remains the same.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.