Question

If the value of g suddenly becomes twice it's value, it will become two times more difficult to pull a heavy object along the floor. Why?

Answer 1

as we know when we pull or push along the surface
friction force will act

and friction force is proportional to the normal force on the body

on the floor
normal force = weight = mg

so
as g become twice
mg ––> 2mg

so as normal force doubled

so friction force will also become twice

and due to friction we fill difficulty to pull become twice

hope it helps you
@di

Answer 2

Answer:

(i) If the value of g becomes double,the force with

which the earth pulls the object i.e weight of

object becomes double.

(ii) As weightincreases,frictional force also increases

while pulling the object

( iii) Hence, it will become two times more difficult to

pull a heavy object along the floor.

Explanation: