List of top Physics Questions on Escape Speed asked in BHU UET

The acceleration due to gravity becomes $\left(\frac{g}{2}\right)$ where (g = acceleration due to gravity on the surface of the earth) at a height equal to

The acceleration due to gravity on the planet $A$ is $9$ times the acceleration due to gravity on planet $B. A$ man jumps to a height of $2\, m$ on the surface of $A.$ What is the height of jump by the same person on the planet $B$.