# Physics

A pitcher throws a curveball that reaches the catcher in 0.55 s. The ball curves because it is spinning at an average angular velocity of 335 rev/min (assumed constant) on its way to the catcher's mitt. What is the angular displacement of the baseball (in radians) as it travels from the pitcher to the catcher?

This depends upon the mass of the baseball, the orientation of ths spin axis ands the distance to home plate. Was any of this information provided? You will need to use the equation for the Magnus effect, and a bit of geometry and ballistics

I think this question is asking for the angular displacement of the ball spinning about its axis, not the angle the ball travels in the curve. Teh problem is not clear.

However, the angular displacement the ball travels about its center is given by angular velocity * time.

If what they are asking for is just how much the baseball ROTATES, and not how much the curve ball deviates from a straight line, then just multiply the spin rate by the time of flight. That seems like a trivial interpretation however

I not really sure how to tackle the question but I know it is deals with Rotational Motion and Angular Displacement and Angular Velocity and Angular Acceleration.

I know average angular vel =
angular displacement /elapsed time

I know average angular acc =
change in angular velocity/elapsed time

I know that 2PI rad corresponds to 360 degrees.

I am unsure how to begin working the problem.

the angular displacement the ball travels about its center is given by angular velocity * time.

change angular veloctiy in rpm to rad/sec before calculating.

1. 👍
2. 👎
3. 👁

## Similar Questions

1. ### Physics

Now assume that the pitcher in Part D throws a 0.145-kg baseball parallel to the ground with a speed of 32 m/s in the +x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight

2. ### science math practice

a pitcher throws a 0.145-kg baseball at a velocity of 30.0 m/s. how much kinetic energy does the ball have?

3. ### physics help 2!!

When a pitcher throws a curve ball, the ball is given a fairly rapid spin. A 0.15 kg baseball with a radius of 3.7 cm is thrown with a linear speed of 41 m/s and an angular speed of 37 rad/s. Assume that the ball is a uniform,

4. ### calc

A pitcher throws a baseball straight into the air with a velocity of 72 feet/sec. If acceleration due to gravity is -32 ft/sec2, how many seconds after it leaves the pitcher's hand will it take the ball to reach its highest point?

1. ### Biomechanics

A pitched ball with a mass of 1 kg reaches a catcher's glove traveling at a velocity of 28 m/s. How much momentum does the ball have? how much impulse is required to stop the ball? If the ball is in contact with the catcher's

2. ### physics

A pitcher throws a 0.141-kg baseball toward the batter so that it crosses home plate horizontally and has a speed of 42 m/s just before it makes contact with the bat. The batter then hits the ball straight back at the pitcher with

3. ### discrete math

Nine people on a baseball team are trying to decide who will play which position. a. in how many different ways could they select a person to be pitcher? b. after someone has already been selected as pitcher, how mandy different

4. ### Physics

A baseball catcher puts on an exhibition by catching a 0.150 kg ball dropped from a helicopter at a height of 100 meters above the catcher. If the catcher "gives" with the ball for a distance of 0.750 meters while catching it,

1. ### Math

A pitcher throws a 142 g baseball, which accelerates at a speed of 9 m/s^2. How much force does the pitcher apply to the ball?

2. ### calculus

A baseball pitcher throws a baseball with an initial velocity of 133 feet per second at an angle of 20° to the hoizontal. The ball leaves the pitcher's hand at a height of 5 feet. Find parametric equations that descrive the

3. ### Physics

A baseball catcher puts on an exhibition by catching a 0.15-kg ball dropped from a helicopter at a height of 101 m. What is the speed of the ball just before it hits the catcher's glove 1.0 m above the ground? (g = 9.8 m/s2 and

4. ### physics

A baseball of mass 250g, pitched with a speed of 40m/s, is caught by a catcher, whose glove moves backward 0.25m while stopping the ball. a)what is the kenetic energy of the ball? b)how much work did the catcher's glove do on the