Question

An 80 kg astronaut takes a journey from the surface of Earth and lands on the surface of Mars. The acceleration due to gravity on Earth is 9.8 m/s² and

the acceleration due to gravity on Mars is 3.7 m/s².
How does the astronaut's mass and weight on Mars compare to their mass and weight on Earth?
Elimination Tool
Select one answer
A The astronaut's mass and weight on Mars will both be the same as they were on Earth.
B The astronaut's mass and weight on Mars will both be less than they were on Earth.
C The astronaut's weight on Mars will be the same as it was on Earth, but their mass will be less on Mars than it was on Earth.
D The astronaut's mass on Mars will be the same as it was on Earth, but their weight will be less on Mars than it was on Earth.

Answer 1

Step-by-step explanation:

Clearly A bc A is alwthe correct answer

Answer 2

D) The astronaut's mass on Mars will be the same as it was on Earth, but their weight will be less on Mars than it was on Earth.

An object's mass is a measure of its amount of matter, and is independent of gravity. The astronaut's mass is 80 kg on both Earth and Mars.

Weight, on the other hand, is the force exerted on an object due to gravity and it is equal to the object's mass multiplied by the acceleration due to gravity.

So the weight of astronaut on Earth will be (80 kg)(9.8 m/s²) = 784 N and on Mars (80 kg)(3.7 m/s²) =296 N. As you can see, the weight of astronaut is less on Mars than it was on Earth.