A rocket descends at 8m/s from a height of 120m and releases a payload 3s later. How long does the payload take to hit t
Height at release: h=120−8⋅3=96m. As per NCERT Chapter 3, equations v=u+at, s=ut+½at², v²=u²+2as describe uniformly accelerated motion. Applying correct signs and units gives 5 s as the result, so option A is correct.
Ref: NCERT Class 11 Physics > Chapter 3: Motion in a Straight Line > Topic: Equations of Motion and Problem Solving
