Question

At the surface of Jupiter's moon Io, the acceleration due to gravity is 1.81 m/s2 . A watermelon has a weight of 54.0 N at the surface of the earth. In this problem, use 9.80 m/s2 for the acceleration due to gravity on earth. What is its mass on the earth's surface?

Answer 1

`m=5.51Kg`

Step-by-step explanation:

The weight of an object on Earth is given by
`W=mg`, so we can calculate its mass by doing
`m=W/g`, which for our values is:

`m=(54N)/(9.8m/s^2)=5.51Kg`

Nothing is being asked about Io but if one wanted to know the weight W' of the watermelon there one just have to do:

`W'=ma=(5.51Kg)(1.81m/s^2)=9.97N`