Question

Marvin Martian is standing on planet Potatoine.

Potatoine has the following physical data:

Radius: 6.4x106 m
Mass: 2.0x1024 kg
If Marvin's mass is 35 kg, calculate his weight on Potatoine.

Answer 1

W = 113.98 N

Step-by-step explanation:

Given that,

Radius of Potatoine
`R=6.4* 10^6\ m`

Mass of Potatoine,
`M=2* 10^(24)\ kg`

Mass of Marvin, m = 35 kg

We need to find his weight on Potatoine. Weight of an object is given by :

W = mg

g is acceleration due to gravity,
`g=(GM)/(R^2)`

So,

`W=(GMm)/(R^2)\\\\W=(6.67* 10^(-11)* 35* 2* 10^(24))/((6.4* 10^6)^2)\\\\W=113.98\ N`

So, his weight on Potatoine is 113.98 N.