After an avalanche, a huge block of a stone slid down a mountain and landed in the middle of a road. People in the nearby town had a very difficult time moving it out of the road, The block of stone is difficult to move because.

it has a high amount of momentum
has balanced forces acting on it
it has a high amount of inertia ***
has unbalanced forces acting on it

3 answers

I agree.
Yes I agree
i agree too