Question

An object is thrown vertically upwards with a velocity u, the greatest height h to which it will rise before falling back is given by :

Options

• u/g

• u²/2g

• u²/g

• u/2g

Answer 1

u² / 2g
At the maximum height 'h', the velocity becomes zero.
Using,
v² = u² − 2gh
⇒ 0 = u² − 2gh
⇒ h = u²/(2g)