# What effect might the stitches on a baseball have on the path of a baseball quizlet?

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First, they provide a place to get a better grip on the ball. Secondly, they interact with the air as the ball moves. The stitches slightly affect the air drag, but they strongly affect the Magnus force.

## How do the stitches on baseballs affect their flight?

Depending on the orientation of the ball in flight, the drag changes as the flow is disturbed by the stitches. … For a baseball, the drag can be determined experimentally by throwing the ball and accurately measuring the change in velocity as the ball passes between two points of known distance.

## Why does a baseball have 108 stitches?

Why are There 108 Stitches on a Baseball? How many stitches on a baseball is determined by dimensions of the baseball. The size, as well as the shape of the cowhide used both contribute to how many stitches on a baseball are needed. The 108 stitches are double stitched, meaning the ball actually contains 216 stitches.

## What do stitches do for a baseball?

The purpose of having stitches on a baseball helps pitchers throw different pitches to hitters. By gripping the ball differently on or across the baseball seams, they can change their pitch trajectory. The spin of the ball against the air can cause a pitch to break in a specific way, or drop as it comes to a batter.

## How does lift affect a baseball?

When the baseball spins while it is moving toward home plate it generates aerodynamic lift due to the Magnus effect. In the case of a fastball this lift is upward and will help give the pitch a flatter trajectory that will break later.

## How are baseballs stitched?

They are stitched by hand using 108 stitches taking about 10 minutes. Once stitched, the ROMLB’s are machine rolled for 15 seconds to flatten the stitching. Then the Rawlings trademark, MLB logo, and commissioner’s signature are stamped on the balls and allowed to dry for one week.

## How heavy is a baseball?

The ball has a cork-and-rubber core, around which yarn is tightly wrapped; the cover consists of two snugly fitted pieces of white leather sewn together. The circumference is 9 to 9.25 inches (23 to 23.5 cm) and the weight between 5 and 5.25 ounces (142 and…

## What does a red K mean in baseball?

The backward K can be seen in ballparks all across the world. It’s a symbol for the fans to remind the pitcher and the batter how many strikeouts the pitcher has. It’s often seen hanging in ballparks, in the outfield in big red letters.

## How do the stitches on a baseball affect the speed at which it travels?

The raised red cotton stitching that holds the cowhide covering of the ball together serves more than just an ornamental function. Without it, the ball wouldn’t travel as far or as fast. When the ball is airborne, the stitching disturbs the boundary layer, the paper-thin layer of air closest to the surface of the ball.

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## What are the stitches on a baseball made of?

The ball starts as a round cushioned cork center called a “pill,” then is wrapped tightly in windings of wool and polyester/cotton yarn, and then covered by stitched cowhide.

## What happens baseball?

Baseball is a bat-and-ball game played between two opposing teams, typically of nine players each, that take turns batting and fielding. The game proceeds when a player on the fielding team, called the pitcher, throws a ball which a player on the batting team tries to hit with a bat.

## What causes a baseball to move?

The rotation of the baseball in combination with the way the seam is spinning through the air causes the ball to move in different patterns. A few common pitches are the fastball, curve ball, slider, and the screwball. Each of these pitches has a different spin because of how the player grips the ball.

## What is lift force in baseball?

The lift force generated by a spinning baseball is the origin of the curve ball thrown by big league pitchers. … For a curve ball, the direction of the lift force is used to move the ball parallel to the surface of the earth, from side to side.

## What is drag force on a baseball?

The drag on a ball is being generated by the boundary layer separating from the back of the ball. As the flow separates, it creates a viscous wake behind the ball. A large, wide wake generates a large amount of drag; a thin wake produces less drag.