An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.The football player is throwing the ball this is an example of Newtons First law
The effect of force on acceleration?
Examples of forces
For every action, there is an equal and opposite reaction. When the soccer ball hits the post is it going to come with the equal force but coming back at you because the opposite reaction. This is a example of Newton's third law.
The effect of speed on kinetic energy
The greater the force the quicker the object accelerates. The more force an object has the object is going to go faster.He is going faster becasue the force is making him go more quick snd fast,
Gravity is pushing down on the bed and there us a normal force pushing up which is an example of balanced fo
As the speed increases the kinetic energy with double. When a car increases in speed it goes up in kinetic energy. That's the relationship between kinetic energy and speed