Mass and Newto's first law

• A bowling ball and a golf ball- A bowling ball has more mass than a golf ball and since it has more mas it has more inertia therefore it will be harder to move so it will need more force than the golf ball.

• A ballom and a rock- The rock has more mass than the ballom because even though the ballom is bigger the rock weights more so the rock has more inertia than the ballom this is why you can move a ballom very easily and it is harder to move a rock.

• If you try to push a car no matter how many times you try you wont do it because it has a lot of mass which means it has more inertia and also because an object that is at rest has to stay at rest unless is acter by another force.