Baseball Definition and 261 Threads

Homework Statement A pitcher throws a 0.124-kg baseball, and it approaches the bat at a speed of 54.2 m/s. The bat does Wnc = 76.5 J of work on the ball in hitting it. Ignoring the air resistance, determine the speed of the ball after the ball leaves the bat and is 21 m above the point of...

Homework Statement A baseball player friend of yours wants to determine his pitching speed. You have him stand on a ledge and throw the ball horizontally from an elevation 7.00 m above the ground. The ball lands 20.0 m away. A. What is his pitching speed? B. As you think about it, you’re not...

Homework Statement A batter hits a baseball at a speed of 45 m/sec at an angle of 50° above the horizontal. The right fielder, who is standing 300 m away from the batter, begins to run when he sees the bat hit the ball. If the fielder runs at a constant speed, what speed does he need to run...

Homework Statement A major-league pitcher can throw a baseball in excess of 46.8 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 15.7 m away from the point of release? Homework Equations The Attempt at a...

Homework Statement A 0.140-kg baseball traveling 33.0 m/s strikes the catcher's mitt, which, in bringing the ball to rest, recoils backward 13.0 cm. What was the average force applied by the ball on the glove? Homework Equations F=\DeltaM/\DeltaT The Attempt at a Solution I don't...

Homework Statement 52. A baseball player catches a ball 3.1 s after throwing it vertically upward. With what speed did he thow it, and what height did it reach? Homework Equations def of a = t^-1 (V - Vo) The Attempt at a Solution t = (3.1 s)2^-1 = 1.55 s def of a = t^-1 (V -...

Homework Statement A batter hits a pop fly straight up. a) Is the acceleration of the ball on the way up different from its acceleration on the way down? (YES / NO) b) Is the acceleration of the ball at the top of its flight different from its acceleration just before it lands?Yes / No...

Homework Statement a 0.144kg baseball is pitched horizontally at +38m/s. after it is hit by a bat, the baseball moves horizontally at -38m/s. a) what impulse did the bat deliver to the ball b) if the bat and the ball were in contact for 8.0*10^-4 seconds, what was the average force that...

I am doing a research paper on many of the different kinds of pitches in baseball like fastball, curveball, knuckleball. I wanted to do something on illegal pitches like a spit ball, scuffball, or somehting like that but can't find much infomation. Can anyone help? thanks

Hi! The Red Sox just finished an 11-game winning streak, which made me wonder. Do most teams experience winning streaks this long over the course of a season? What is the expected value of the length of the longest winning streak for a .500 team over the course of a season? In...

Homework Statement A 0.028 kg bullet is fired vertically at 185 m/s into a 0.15 kg baseball that is initially at rest. The bullet lodges in the baseball and, after the collision, the baseball/ bullet rise to a height of 37 m. (a) What was the speed of the baseball/bullet right after the...

A baseball is hit with a horizontal speed of 16 m/s and a vertical speed of 19 m/s upward. What are these speeds 1 s later? horizontal speed 16 m/s vertical speed ? m/s I figured out that the horizontal speed would still be the same and it was. So i thought that the vertical speed...

Homework Statement After you hit a baseball, it flies into a window across the street. The baseball leaves your bat at a distance 1m above the ground, and the window is 12 m above the ground. The ball leaves your bat with a velocity of 30 m/s at 30 degrees. How long was the ball in the...

Homework Statement A baseball player holds a bat at the end of the handle. If the bat is held horizontally, what is the approximate torque due to the force of gravity on the bat, with a pivot point at the batter's hands? Assume that the the bat is uniform. Use L for length of the bat, m for...

Homework Statement can the kinetic energy of a baseball be negative. can the potential energy of a baseball be negative. Homework Equations no relevant equations. The Attempt at a Solution i believe the potential energy can be negative if it is falling and the kinetic energy can...

My teacher told me he calls this a "baseball question"... why?! Homework Statement A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.0 m/s. The car is distance d away. The bear is 26 m behind the tourist and running at 6.0 m/s. The tourist...

Homework Statement A baseball is hit at ground level. The ball is observed to reach its maximum height above ground level 3.0 seconds after being hit. And 2.5 seconds after reaching this maximum height, the ball is observed to barely clear a fence that is 320 ft from where it was hit. How high...

Homework Statement A baseball bat of length L has a peculiar linear density given by \lambda = \lambda0 * (1+X2/L2) Find the x coordinate of the center of mass in terms of L Homework Equations Mxcm= mr The Attempt at a Solution So I use integration The integrand I have is x*\lambda dx...

Homework Statement A 150-g baseball pitched at a speed of 40 m/s is hit straight back to the pitches at a speed of 60 m/s. If the bat is in contact with the baseball for 5 ms calculate the magnitude of the average force exerted by the bat on the baseball. Homework Equations Favg = delta...

[b]1. Homework Statement You throw a baseball to hit a target on the ground 10m from the base of a building 25m in height. (a) With what velocity must you throw the baseball if it is to leave the hand horizontally? (b) with what velocity mut you throw the baseball if it is to leave the hand...

While standing still on the baseball field, you throw the ball to a teammate. Why do you not move backward as a result? Is the law of conservation of momentum violated?

I'm half (maybe only a quarter) watching the World Series... ...Tampa Bay has a pitcher named Balfour :smile: ! That's as bad as a pitcher named Walker.

Homework Statement An outfielder throws a 2.01 kg baseball at a speed of 108 m/s and an initial angle of 11.9◦. What is the kinetic energy of the ball at the highest point of its motion? Answer in units of J. Homework Equations change KE=W R=Vi^2/g (sin2O) V^2=Vi^2+2ax F=ma W=Fx...

Homework Statement A 0.145 kg baseball pitched horizontally at 39.0 m/s strikes a bat and is popped straight up to a height of 37.0 m. (a)If the contact time between bat and ball is 1.0 ms, calculate the magnitude of the average force between the ball and bat during contact. (b)Find the...

Homework Statement A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown. The throw is made with an initial speed of 15.0 m/s at an angle of 33.0° above the horizontal. (Neglect air resistance.) How long is the ball in the air...

Question: A baseball player slides into third base with an initial speed of 8.35 m/s. If the coefficient of kinetic friction between the player and the ground is 0.36, how far does the player slide before coming to rest? How would I start this problem?? I would use Ff=uFn but it doesn't even...

A 250 g baseball is pitched at 35 m/s, and it's spinning at 55rad/s . What fraction of its kinetic energy is rotational? Treat the baseball as a uniform solid sphere of radius 3.8 cm. Answer in K_rot_/K_tot What the?! I am pretty lost on this one... Do I use K_rot_=(1/2)I\omega^2

So I've been trying to find sources that discuss the actual science behind this, but of course that's very hard to find. I've been skeptical about the effects steroids has on hitting power in baseball. Maybe it affects people in other sports, but with hitting power in baseball I am skeptical...

Homework Statement It's the bottom of the ninth inning at a baseball game. Score is tied with a runner on 2nd when the batter gets a hit. The 85 kg runner rounds 3rd and is heading home with a speed of 8.0 m/s. Just before he reaches home plate he crashes into the catcher and the two players...

a baseball player hits a home run that just clears the top of the bleachers 21m high located 130m from home base. the ball is hit at an angle of 35* above the horizontal a) find initial velocity of the ball b)the total time of the flight of the ball...

Even problem, very please! A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward first base with a speed of 24 ft/s. a) At what rate is his distance from second base decreasing when he is halfway to the first base? b) At what rate is his distance from third...

[SOLVED] Relativistic Doppler Effect and a Baseball Homework Statement A baseball coach uses a radar device to measure the speed of an approaching pitched baseball. This device sends out electromagnetic waves with frequency f_0 and then measures the shift in frequency \Delta f of the...

Homework Statement a baseball is thrown at an angle of 25 degrees relative to the ground at a speed of 23.0m/s. If the ball was caught 42 m from the thrower, how long was it in the air? how high did the ball travel before being caught? Homework Equations The Attempt at a Solution...

Homework Statement A pitcher throws a 0.128-kg baseball, and it approaches the bat at a speed of 56.1 m/s. The bat does Wnc = 81.3 J of work on the ball in hitting it. Ignoring the air resistance, determine the speed of the ball after the ball leaves the bat and is 24.6 m above the point of...

I have coached and taught baseball collegiately and professionally for the past 15 years and have stumbled upon a question that is beyond my math education. How does linear movement of a rotating system effect the angular acceleration of that system if the system is moving left to right and...

a) A pitcher throws a baseball horizontally at 116 km/h toward home plate, which is 18.4 m away. How far will the ball drop due to gravity by the time it reaches home plate? g=9.81m/s^2 v=116km/h i tried to solve this question, but i don't know where to get the high. 116km/h=32.22m/s...

[SOLVED] Hitting a baseball Homework Statement A batter hits a pitched ball when the center of the ball is 1.37 m above the ground.The ball leaves the bat at an angle of 45° with the ground. With that launch, the ball should have a horizontal range (returning to the launch level) of 106 m...

[SOLVED] Baseball projectile motion question Homework Statement A ball player hits a home run, and the baseball just clears a wall 8.00 m high located 104.8 m from home plate. The ball is hit at an angle of 38.4 degrees to the horizontal, and air resistance is negligible. Assume the ball is...

Homework Statement This is part of a calculus test and I am clearly missing something because this should be an easy problem: A baseball pitcher is having fun with the fans. He can throw a ball vertically froma point 6 feet above the ground at 75 miles per hour (110 ft/sec). He is standing in...

finally in my search to understand why the boundary layer separates from the surface of a baseball I have come to understand that the reasons for the separation of the boundary layer from a baseball is incredibly similar to the separation of the boundary layer from a wing of an airplane after...

hey, I'm having some difficulty with this problem. / / | / ) 45 | | | 3.0m | 1.3m...

i don't understand wat I am doing wrong here is my problem Choose the positive direction to be from the pitcher to the plate (some answers may be negative). A pitcher throws a 0.13 kg baseball so that it crosses home plate horizontally with a speed of 31 m/s. It is hit straight back at the...

Homework Statement A baseball is thrown from the roof of a 22.0-m-tall building with an inital velocty of magnitude 12.0 m/s and directed at an angle of 53.1 degrees above the horizontal. a) What is the speed o fthe ball just before it strikes the ground? Use energy conservation and ignore...

A baseball is thrown straight up with initial speed v(o). If air resistance cannot be ignored, when the ball returns to its initial height its speed is less than v(o). Explain why, using energy concepts. I am very confused as to why this is. A projectile has the same initial kinetic energy...

1. A baseball is thrown vertically into the air with a speed of 24.0m/s. How long does it take to return to the ground? I found out the height that it could reach was 29m, then I used the formula d=vit+at^2/2. ---> 29=24t+9.81t^2/2. But I got two answers. THey are both positive. Why? Is...

When a baseball flies through the air, the ratio f_{quad} / f _{lin} of the quadratic to the linear drag force is given by \frac{f_{quad}}{f_{lin}} = \frac{cv^{2}}{bv} = \frac{\gamma D}{\beta} v = (1.6 x 10^{3} \frac{s}{m^{2}}) Dv. Given that a baseball has a diamater of 7 cm, find the...

Homework Statement 1) A baseball is thrown straight up. The drag force is proportional to v^2. In terms of g, what is the y-component of the balls acc., when it's speed is half is terminal speed and it is moving up? When it is moving down? The Attempt at a Solution 1) When the ball...

Another amazing finish for the Beavers! It was supposed to be a "rebuilding year".( They lost almost all of last year's starting players to graduation or the draft). They struggled in conference play during the season going 10-14. (And thus become the first team to win the national...

Homework Statement an outfielder throws a 2.15 kg baseball at a speed of 113 m/s and an initial angle of 11.2 degrees. What is the kinetic energy of the ball at the highest point of its motion. Homework Equations KE = 1/2mv^2 KE(initial) + PE(initial) = KE (final) + PE (final)...

Homework Statement Estimate the maximum height reached by a baseball during its flight if it is thrown with a velocity of 81 feet per second at an angle of 75 degrees relative to level ground. The Attempt at a Solution I found an answer, but I don't know if I did it right so I guess I'm...