Question

a body projected up with a velocity u reaches height h. to reach double the height ,it must be projected up with a velocity of: give solution

Answer 1

Answer:

Solution. #

Explanation:

Answer 2

velocity of body should be √2 v.

a body projected up with a velocity u reaches height h.

at maximum height, velocity of body becomes zero.

using formula, v² = u² + 2gs

⇒0² = u² + 2(-g)h

⇒u² = 2gh ...........(1)

To reach double height,

S = 2h, it must be projected up with a velocity of v'.

using formula, v² = u² + 2gs

⇒ 0² = v'² + 2(-g)(2h)

⇒v'² = 4gh

⇒v'² = 2 × 2gh

from equation (1) we get,

⇒v'² = 2u²

⇒v' = √2u

also read similar questions : a body is thrown up with an initial velocity u and cover maximum height h then h is equal to https://brainly.in/question/2180892

A body is thrown up in a lift with a velocity u relative to the lift and the time of flight is found to be the accelerat...

https://brainly.in/question/4305187