The escape velocity at the surface of earth is approximately 11 km/s. what is the mass, in units of me (the mass of the earth), of a planet with three times the radius of earth for which the escape speed is three times that for earth?

11 km/s

Explanation:

Given

Escape velocity at the surface of earth is 11 km/s

Escape velocity is given by

Escape velocity at the surface of earth

--------------------1

If Escape velocity is three times and the radius is also the three times

i.e.

the answer to this question is 60 n

we need to know the time interval during which the force acts. impulse of force = momentum change