2023 Medium
Integer
Marks: 4.00 / −0.00
A ball is thrown vertically upward with \( u = 20\,\text{m/s} \). Taking \( g = 10\,\text{m/s}^2 \), the maximum height in metres is:
Type: Integer answer question
Correct Answer: 20
Hint: Use \( v^2 = u^2 - 2gh \) with \( v = 0 \).
Solution:
\( h = \frac{u^2}{2g} = \frac{400}{20} = 20\,\text{m} \)