A particle is projected vertically upwards the surface of the earth (radius $R_e$) with a speed equal to one fourth of escape velocity. What is the maximum height attained by it ?

Q. A particle is projected vertically upwards from the surface of the earth (radius $R)$ with a speed equal to one-fourth of escape velocity. The maximum height attained by it from the surface of the earth is

Q. A particle is projected vertically upwards from the surface of the earth (radius $R)$ with a speed equal to one-fourth of escape velocity. The maximum height attained by it from the surface of the earth is

Q. A body is projected vertically upwards from the surface of the earth with a velocity equal to ${\frac{3}{4}}^{th}$ escape velocity of earth. If ${}^{\prime }{R}^{\prime }$ is the radius of earth, the maximum height attained by the body is:

Q. A particle is projected vertically upwards from the surface of teh earth (radius $R_e$) with a kinetic energy equal to half of the minimum value needed for it to escape. The height to which it rises above the surface ot the earth is $\frac{R}{n}$ where $n$ is:

Q. A body is projected vertically upwards from the surface of earth with a velocity equal to half the escape velocity. If $R$ is the radius of the earth, maximum height attained by the body from the surface of earth is