A ball thrown down. The thrown ball will have a greater initial velocity and since they experience the same force of gravity, it will always be faster (until they both reach terminal velocity).
the distance it travels before falling to the ground
The answer depends on how high the ball is thrown and at what angle. If the ball is thrown on Earth, Earth's gravity has objects fall at an increasing rate of 32 feet per second per second. This means that an object will go 32 feet per second faster every second it is falling down in the air. So, the higher the ball is in the air, the faster it goes as it is about to hit the ground.
For a given amount of energy 4 kg ball would move faster compared to 6 kg ball
A slider is thrown like a curve ball just much faster.
An object like a falling cannon ball which increases its speed as it moves is said to accelerate. When you hit the brakes of a car it should decelerate. An increase in speed is called acceleration.
The spring hits the ball with an action, and the ball hits the spring with an equal but opposite reaction. Since the ball has more momentum, it moves faster.
a rocket which has lost its balance on coming into earth's atmosphere, a ball thrown from a height,etc
If the ball was thrown-in by a teammate, no. If the ball was thrown-in by an opponent, yes.
Kinetic energy
Rolled? Thrown? How heavy of a bowling ball? And the speed of a ball depends on how hard a person throws it. It is hard to answer such a general question.
If it's a ball like a tennis ball, an old ball would be smoother and would have less drag.
Yes, but one thing that you would have to take into consideration is how much the ball hooks in the last 12-20 feet of the lane, or the part of the lane that oil is not placed on. A slowly thrown ball that looks like it is hooking good for the first 40-45 feet will hook more once it gets to the section of the lane that doesn't have oil on it. A faster thrown ball does not have to worry about an extreme hook of the ball at the backend of the lane like a slower thrown ball does.