During a softball pitch, the pitcher's arm goes through 240° of angular displacement over 0.3s. What...

Question

Question

During a softball pitch, the pitcher's arm goes through 240° of angular displacement over 0.3s. What is the average angular velocity (in °/s)?

Answer 1

Answer #1

Here,

time taken, t = 0.30 s

angle rotated, theta = 240°

average angular velocity = theta/time

average angular velocity = 240°/0.30

average angular velocity = 800 °/s

the average angular velocity is 800 °/s

Add a comment

Answer 2

Similar Homework Help Questions

1. If a person pushed a door with a force of 25 N, and the moment...

1. If a person pushed a door with a force of 25 N, and the moment arm was 1m, how much torque is produced? ______Nm 2. During a softball pitch, the pitcher's arm goes through 120 degrees of angular displacement over 0.25 seconds, What is the average angular velocity? _____ degree/s
In fast-pitch softball, a pitcher swings her arm from straight overhead in a circle, releasing the...

In fast-pitch softball, a pitcher swings her arm from straight overhead in a circle, releasing the 0.185 kg ball at the bottom of the swing. If a pitcher's arm has a length of 1.10 m and mass of 9.96 kg, and the ball goes from initially at rest to a tangential speed of 29.4 m/s before release, what average torque must the pitcher apply to the ball? Model the pitcher's arm as a uniform thin rod swung about one end,...
on 29 of 31> Suppose a fast-pitch softball player does a windmill pitch, moving her hand...

on 29 of 31> Suppose a fast-pitch softball player does a windmill pitch, moving her hand through a circular arc with her arm straight. She releases the ball at a speed of 29.4 m/s (about 65.8 mph). Just before the ball leaves her hand, the ball's radial acceleration is 4230 m/s. What is the length of her arm from the pivot point at her shoulder? length TOOLS

A softball pitcher while winding up swings their arm at the shoulder in the anteroposterior plane...

A softball pitcher while winding up swings their arm at the shoulder in the anteroposterior plane in a circle. If at release, the ball (0.2 kg) is moving at 20 m/s, what is the minimum and maximum force exerted on the ball during rotation. Assume constant velocity around the circle and the arm is 0.75 m long. Remember which direction gravity is affecting the ball at the top of the circle and at the bottom. Маx = Min = 5.3333...
Please Answer Alt Ctri An object turns through an angular displacement of 50o. What is this...

Please Answer Alt Ctri An object turns through an angular displacement of 50o. What is this angular displacement in revolutions and radians? 2.
At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement...

At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by θ(t)=( 244 rad/s )t−( 20.1 rad/ s 2 ) t 2 −( 1.46 rad/ s 3 ) t 3 . Part A At what time is the angular velocity of the motor shaft zero? Part B Calculate the angular acceleration at the instant that the motor shaft has zero angular velocity. Part C How many revolutions does the...

A dog goes through a park. Its displacement is described by the following equations: x(t) =...

A dog goes through a park. Its displacement is described by the following equations: x(t) = 28.0 + 7.2t -0.31t 2 and y(t) = 30.0 -9.1t + 0.22t2 Positions and time are expressed in m and s, respectively. a) At t = 15 s, determine the position vector r of the dog in terms of unit vectors i and .k b) Determine for t = 15 s the velocity vector v of the dog terms of the unit vectors i...
A figure skater is spinning with an angular velocity of +13.4 rad/s. She then comes to...

A figure skater is spinning with an angular velocity of +13.4 rad/s. She then comes to a stop over a brief period of time. During this time, her angular displacement is +5.81 rad. Determine (a) her average angular acceleration and (b) the time during which she comes to rest.
A figure skater is spinning with an angular velocity of +12 rad/s. She then comes to...

A figure skater is spinning with an angular velocity of +12 rad/s. She then comes to a stop over a brief period of time. During this time, her angular displacement is +9.0 rad. (a) Determine her average angular acceleration. __rad/s2 (b) Determine the time during which she comes to rest. ___s

A ceiling fan is spinning with an angular velocity of +10RAD /s. It then comes to...

A ceiling fan is spinning with an angular velocity of +10RAD /s. It then comes to a stop over a brief period of time. During this time, its angular displacement is +8.7RAD. The blades of the fan extend 0.9 m from the center. (a) Determine the average angular acceleration. (b) Determine the time during which it comes to rest. (c) How far (in meters) does the tip of each blade travel during this time?