if ve is escape velocity for earth when projectile is fired from surface of earth ,then escape velocity if same projectile is fired from earths centre

Q. If $v_e$ is the escape velocity for earth when a projectile is fired from the surface of earth. Then the escape velocity if the same projectile is fired from its centre is

Q. A projectile is fired from the surface of earth of radius $R$ with a velocity $k{v}_e$ (where $v_e$ is the escape velocity from surface of earth and $k<1)$ Neglecting air resistance, the maximum height of rise from the centre of earth is

Q. A projectile is fired vertically from the Earth with a velocity $k{v}_e$ where $v_e$ is the escape velocity and $k$ is a constant less than unity. The maximum height to which projectile rises, as measured from the centre of Earth, is

Q. A projectile is fired vertically upwards from he surface of the earth with a velocity $K{v}_e$, where $v_e$ is the escape velocity and $k<1$. If R is the radius of the earth, the maximum height to which it will rise, measured from the centre of the earth, will be (neglect air resistance)

Q. A projectile is fired vertically upwards from the surface of the earth with a velocity $k{v}_e$ where $v_e$ is the escape velocity and $k<1$. If $R$ is the radius of the earth, the maximum height to which it will rise measured from the centre of earth will be (neglect air resistance)