Question

What is the weight of a 70 kg body on the surface of a planet whose mass is 1/7 that of earth and radius
is half of earth?
(1) 20 kgf
(2) 40 kgf
(3) 70 kgf
(4) 140 kgf
​

Answer 1

Step by step explanation:Let the weight on planet be x,

Weight=mg

Weight on earth,

GMm/R^2=70 ........1

Weight on planet,

4GMm/7R^2=x ........2

ComParing 1 and 2,

7x/4=70

x=40.

{2 OPTION IS CORRECT}

PLEASE MARK AS BRAINLIEST

Answer 2

Answer:

answer is 40kgf

Explanation:

just see the uploaded photo