Emails us- Call US

Assignment help 1492

A softball pitcher throws an underhanded pitch with the arm fully extended (straight at the elbow). The ball leaves the pitcher’s hand with a speed of 25 m/s. 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 of the pitcher’s arm given its moment of inertia is 0.72 kgA?·m2 and the ball leaves the hand at a distance of 0.550 m from the pivot in the shoulder.743.8 J(b) What force did the muscles exert to cause the arm to rotate if their effective perpendicular lever arm was 4.00 cm and the ball had a 0.600 kg mass? ___N


15% off for this assignment.

Our Prices Start at $11.99. As Our First Client, Use Coupon Code GET15 to claim 15% Discount This Month!!

Why US?

100% Confidentiality

Information about customers is confidential and never disclosed to third parties.

Timely Delivery

No missed deadlines – 97% of assignments are completed in time.

Original Writing

We complete all papers from scratch. You can get a plagiarism report.

Money Back

If you are convinced that our writer has not followed your requirements, feel free to ask for a refund.