Question

An astronaut of 66.0kg mass is in preparation for launch to a distant planet. a) knowing that the gravitational acceleration on the surface of that planet is 0.33 of the gravitational acceleration g, what would be the weight of the astronaut on the planet? b) what is the mass of the astronaut on the planet? c) What would be the weight of the astronaut on the earth?

Answer 1

Part a)

Weight on surface of other planet = 213.4 N

Part b)

Mass of the Astronaut = 66.0 kg

Part c)

Weight of the Astronaut on Earth = 646.8 N

Step-by-step explanation:

Part A)

Weight of the Astronaut on the surface of the planet is given as

`F_g = mg`

here we will have

`m = 66.0 kg`

also we have

`g = 0.33(9.8) m/s^2`

`g = 3.23 m/s^2`

now we have

`F = 66 * 3.23 = 213.4 N`

Part B)

Mass of the Astronaut will always remains the same

So it will be same at all positions and all planets

So its mass will be

m = 66.0 kg

Part C)

Weight of the Astronaut on Earth is given as

`F_g = mg`

`F_g = (66.0 kg)(9.8 m/s^2)`

`F_g = 646.8 N`