Q. A ball is thrown vertically upward. It has a speed of 10 m/s when it has reached one half of its maximum height. How high does the ball rise ? (Taking g = 10 m/s²)
A) 6 m
B) 10 m
C) 14 m
D) 18 m
Explanation
[Solution from source] From H/2 to the top the speed drops from 10 m/s to 0: 10² = 2g(H/2) = gH, so H = 100/10 = 10 m. 5 m would be just the upper half. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.