Question

An object has a mass of 30 kg. what is the weight a) on the moon b) on the another planet The value of g on moon is 1/6 of the value of g on the earth. The value of g on the planet is 3 times the value of g on the earth. Take acceleration due to gravity on earth = 10m/s2

Answer 1

weight= mass * g

therefore weight on moon=30 * 1/6 * 10

                                         = 50kgm/s2 or 50N

Answer 2

given -

weight of boy on earth  (We)=30kg

weight of boy on moon  (Wm)=?

we know that -

Wm=1/6×weight of object on earth

        =1/6×30kg

        =5N

therefore, the weight of boy on moon is 5N.