Consider the following three cases:.
Case 1: A person holds her arm at an angle of 30 degrees...
Physics, 10.03.2020 17:55, carmenala2
Consider the following three cases:.
Case 1: A person holds her arm at an angle of 30 degrees above the horizontal (hand is higher than the shoulder).
Case 2: A person holds her arm straight out parallel to the ground.
Case 3: A person holds her arm at an angle of 30 degrees below the horizontal (hand is lower than the shoulder).
(a) In which of the following cases is the torque about the shoulder due to the weight of the arm the greatest?
(b) Briefly explain your answer to the previous question.
(c) If the person lets her arm swing freely from an initial straight-out parallel-to-the-ground position, when is the angular acceleration of the arm about the shoulder the greatest?
(d) Briefly explain your answer to the previous question.
Answers: 3
Other questions on the subject: Physics
Physics, 21.06.2019 15:40, aroman4511
Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m
Answers: 2
Physics, 22.06.2019 00:40, yaneiryx5476
Aballet student who learns with the of his instructor is demonstrating learning.
Answers: 3
Physics, 22.06.2019 05:10, zionnahl
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Do you know the correct answer?
Questions in other subjects:
Mathematics, 27.04.2020 03:18
Social Studies, 27.04.2020 03:18
Mathematics, 27.04.2020 03:18
