Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

In softball, the pitcher throws with the arm fully extended (straight at the elbow). In a fast pitch the ball leaves the hand with

image text in transcribed

In softball, the pitcher throws with the arm fully extended (straight at the elbow). In a fast pitch the ball leaves the hand with a speed of 139 km/hr. (Assume that the pitching motion originates with the arm straight back and terminates with the arm straight down. Do not ignore gravity.) (a) Find the rotational kinetic energy (in J) of the pitcher's arm given its moment of inertia is 0.720 kg m2 and the ball leaves the hand at a distance of 0.595 m from the pivot in the shoulder. (Enter the rotational kinetic energy of the pitcher's arm just after the ball is released.) 1510 ] (b) What force (in N) did the muscles exert to cause the arm to rotate if their effective perpendicular lever arm is 4.00 cm and the ball is 0.182 kg? (Enter the magnitude.) -26.53 X N Additional Materials Reading

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

College Physics

Authors: OpenStax

2nd Edition

171147083X, 978-1711470832

More Books

Students also viewed these Accounting questions

Question

Identify the four steps in ethical decision making. AppendixLO1

Answered: 1 week ago

Question

2. Distinguish between the different types of opportunities.

Answered: 1 week ago

Question

1. Describe the main components of entrepreneurship.

Answered: 1 week ago