Q. Consider a rubber ball freely falling from a height $h = 4.9\ m$ onto a horizontal elastic plate. Assume that the duration of collision is negligible and the collision with the plate is totally elastic. Then the velocity as a function of time and the height as a function of time will be
A) [image:6_image44.emf]
B) [image:6_image45.emf]
C) [image:6_image46.emf]
D) [image:6_image47.emf]
Explanation
(c) Between two collisions direction of velocity of ball get reserved at the highest point
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.