why is it, that a bowling ball goes so fast down the lane?
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Sir Isaac Newton’s three laws of motion can be applied to bowling in different ways. The first law of motion, the law of inertia, can be used to show how a bowling ball will react when it hits the lane, an oiled strip of nearly frictionless surface. Newton’s second law, F=ma, describes the force that the bowling ball will exert on the pins when it hits them. Newton’s third law of motion, “For every action there is an equal and opposite reaction.” explains why the ball will knock down the pins. The ball thrown will apply a force on the pins that will knock down the pins.
Newton's first law states that an object in motion will remain in motion unless acted on by an outside force; an object at rest will remain at rest unless acted on by an outside force.

What does bowling have to do with Newton's 1st law?

If you have ever bowled, you know that after rolling the ball it continues to move across the alley until it comes into contact with the pins. After being put into motion, the bowling ball will remain in motion until friction eventually slows it down.

If the bowling alley never ended would the ball keep rolling forever?

No. As a result of friction (an outside force) the ball will eventually stop.

Bill Nye The Science Guy on Momentum (Full Clip)

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