Question 48
A scientist has discovered two new planets. Planet X is twice as big as Earth, and is 60 million kilometres away. Planet Y is smaller than Earth, and is 90 million kilometres away from Earth.
Astronauts take a rock weighing 5 kg to each of the two new planets. What happens to the rock’s weight and mass at each planet?
Astronauts take a rock weighing 5 kg to each of the two new planets. What happens to the rock’s weight and mass at each planet?
