Which of these forces acts on a football after it has been thrown by a quarterback (and before it touches the ground or another player)?
A) Frictional and applied forces
B) Applied and gravitational forces
C) Gravitational and frictional forces

Explanation: When a football is thrown into the air, the force that propel it to move towards a direction is the "Applied Force". Also, when the ball is moving, it will reach a peak in the air, relative to the applied force and direction, and begin to come down. The ball is being acted upon by a "Gravitational Force", therefore obeys gravity.

Option B, which is "Applied and gravitational forces", is the correct answer.

Which of these forces acts on a football after it has been thrown by a quarterback (and before it touches the ground or another player)? A) Frictional and applied forces B) Applied and gravitational forces C) Gravitational and frictional forces

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Which of these forces acts on a football after it has been thrown by a quarterback (and before it touches the ground or another player)?
A) Frictional and applied forces
B) Applied and gravitational forces
C) Gravitational and frictional forces