An astronaut standing on the surface of the moon throws a ball upwards. The ball would:
Answer & explanation
Correct answer: option 3
The acceleration due to gravity on the surface of the Moon is 1.62519(412) m/s2 , about 16.6% of that on Earth's surface. Over the entire surface, the variation in gravitational acceleration is about 0.0253 m/s2 (1.6% of the acceleration due to gravity). Because weight is directly dependent upon gravitational acceleration, things on the Moon will weigh only 16.6% of what they weigh on the Earth. Hence, the ball will go up and then come back to the surface of the moon.