An object is dropped from rest at a height of 150 m and simultaneously another object is dropped from rest at a height 100 m. What is the difference in their heights after 2 s if both the objects drop with same accelerations? How does the difference in heights vary with time?
Initial difference in height = (150�100) m = 50 m
After 2s, height at which the first body will be = h1�=150 � 2g
After 2s, height at which the second body will be = h2� = 100 � 2g
Thus, after 2s, difference in height = 150 � 2 g � (100 � 2g) = 50 m = initial difference in height
Thus, difference in height does not vary with time.
