Question

Suppose you can communicate with the inhabitants of a planet in another solar system. They tell you that on their planet, whose diameter and mass are 5.0×103km and 3.6×1023kg, respectively, the record for the high jump is 2.0 m. Given that this record is close to 2.4 m on Earth, what would you conclude about your extraterrestrial friends’ jumping ability?

a) Their jumping ability is lower than on Earth
b) Their jumping ability is similar to on Earth
c) Their jumping ability is higher than on Earth
d) Insufficient information to compare

Answer 1

The jumping ability of the extraterrestrial friends is lower than on Earth.

Step-by-step explanation:

The jumping ability of the extraterrestrial friends can be compared to that on Earth by considering the gravitational acceleration on their planet. The value of g for their planet is 3.8 m/s², which is about one-fourth that of Earth. Since the record for the high jump on their planet is 2.0 m, which is close to 2.4 m on Earth, we can conclude that their jumping ability is lower than on Earth.