Q. A force–time graph for a linear motion is shown in figure where the segments are circular. The linear momentum gained between zero and $8\ second$ is
A) $- 2\pi\ newton \times second$
B) $Zero\ newton \times second$
C) $+ 4\pi\ newton \times second$
D) $- 6\pi\ newton \times second$
Explanation
(b) As the area above the time axis is numerically equal to area below the time axis therefore net momentum gained by body will be zero because momentum is a vector quantity
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.