so if gravity is doubled so the force required will also be doubled
We know that,
Weight ∝ Mass
Weight ∝ g
Force ∝ mass [by second law of motion]
Force ∝ Weight [from relation 1]
Force ∝ g [from relation 1] [without loss of generality]
hence if g become twice then force will also be double and it will be more difficult to move that object
Hope this scientific explanation helped you
Here acceleration is gravity
Now if gravity doubles the weight of the object also doubles .So it become more difficult to lift it.
NOTE - The mass is always fix.
Your muscles would struggle with even small movements. However, one of the most dangerous effects would be on your heart. Stronger gravity would cause blood to pool in your extremities, making your heart work extra hard to keep the blood pumping around your body.
Weight is the force of gravity on a mass. Newton's second law formula (F = m•a) shows the relationship between mass, acceleration and force. The weight formula uses Newton's second law:
F = gm
Here force is directly proportional to g Andhence if g becomes double without any change in mass then force also become double. Hence it will become 2 times more difficult to pull the object on the floor. Rather than for extra information if we thrice the g and twice the mass then required force will be:-
F = 3g × 2m = 6 gm = 6F
Therefore, it is sixth time more.
if g becomes 2 times so
w = m×2g
hence it is very hard to pull a heavy object
(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.