Q. Which of the following curves represent the $v - t$ graph of an object falling on a metallic surface and bouncing back?
A) [image:3_image16.emf]
B) [image:3_image17.emf]
C) [image:3_image18.emf]
D) [image:3_image19.emf]
Explanation
(d) The straight vertical line in the graph represents change in the direction of velocity.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.