Question

according to newton’s first law of motion, an object in motion stays in motion. why does a ball that is
the unbalanced force of the earth’s gravity becomes greater than the force imparted by your hand.
a human arm is not very strong.
static friction stops the motion of the ball.
the ball is heavier than air and is pressed downward by the air.

Explanation:

Newton's first law states an object in motion stays in motion unless acted on by an external force. When a ball stops moving, friction is a common external - force culprit. Static friction acts when an object is at rest or trying to start moving, but in the context of a moving ball coming to a stop, it's more about kinetic friction (though the option mentions static friction which is a misnomer here, but still friction is the key concept). Gravity affects the vertical motion but not the horizontal motion that stops the ball from rolling or moving forward mainly. The strength of the human arm is not relevant to why the ball stops once it's in motion, and air pressure pushing the ball downwards is not the main reason for it to stop moving horizontally.

Answer:

None of the options are completely correct as the correct answer should be kinetic friction (not static friction as stated) stops the motion of the ball. But among the given options, the closest one in terms of concept is "Static friction stops the motion of the ball" considering the intention of the option is to point at friction as the stopping - force.