Question

If escape velocity one earth surface is 11.1 km/hr then find the escape velocity on the moon surface if mass of moon is $\frac{1}{81}$ times of the mass of the earth and radius is $\frac{1}{4}$ times radius of earth

• A. 2.46 km/hr
• B. 3.46 km/hr
• C. 4.4 km/hr
• D. None of these

Answer 1

Answer: (A)

2.46 km/hr

Answer 2

The correct option is (A): 2.46 km/hr.