A student pushes a golf ball down a frictionless hallway until the ball reached a speed of 2.5 meter per second. Which statement best describes the inertia of
the golf ball when the student stopped pushing the ball?
The ball accelerated
The ball continued to move in the same direction
The ball changed its speed
The ball changed direction and decelerated​

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.