Escape speed for a rocket is less from
A)Earth.
B)the Moon.
C)the Sun.
D)same for each

Question

Quizplus · Accepted Answer

Escape speed is the speed required for an object to escape the gravitational pull of a celestial body. It depends on the mass and radius of the body. As the moon is smaller than Earth, the force of gravity is weaker on its surface. Therefore, the escape speed required for a rocket to leave the moon's surface is about 2.38 km/s, which is less than the escape speed from Earth’s surface (around 11.2 km/s). The escape speed from the Sun’s gravitational pull is much higher, around 617.5 km/s. Hence, Option B is correct.

Escape Speed for a Rocket Is Less from