Question
Question: When a ball is h metre high from a point O, its velocity is v<sub>0</sub>. When it is hm below O, it...
When a ball is h metre high from a point O, its velocity is v0. When it is hm below O, its velocity is 2v. Find the maximum height from O it will acquire
A
2h/3
B
5h/3
C
3h/2
D
2h
Answer
5h/3
Explanation
Solution
(2v)2 – v2 = 2g(2h)
or v2/2g = 2/3 h;
hmax = h + 2h/3 = 5h/3