Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

First, define the vector fields that capture the weights of our upper bodies and of the box that are involved in the lifting of

image text in transcribed

First, define the vector fields that capture the weights of our upper bodies and of the box that are involved in the lifting of the box. Use these vector fields to calculate the work done by simply the motion of moving the box and moving the lifter's upper body along the paths. The orange 71 (t) of the lifter's upper body in orange is simplified to be (t) = (3 cos(t), 3 sin(t)) on the time interval [0, 1]. The green path 72(t) of the box being lifted is given by 72 (t) = ((4 t) cos ( 1.7 - 4), (3 - ) sin ( 1.7- #) > on the time interval [0, 1]. t = 0 View Back Muscle Arc ||W1|| = 539N Fi(t) ||W2|| = 294N FB r B r1 W T2(t) T2 W2 Finally, use a line integral to compute the work done by our backs in this lifting motion. The back force FB is perpendicular to the radius vector function TB (t), which travels a quarter circular path as shown, with radius .08 meters. (Hint: You'll need to calculate a function from the torque of the system at any time t to get a magnitude for the force vector FB. Using MATLAB to make the torque calculations for you will greatly reduce your computational work on this problem, refer to the Module 1-2 Discussion's MATLAB Support for a refresher on vector operations in MATLAB.)

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

Vector Mechanics For Engineers Statics

Authors: R.C.Hibbeler

7th Edition

978-0072931105, 0072931108

More Books

Students also viewed these Mechanical Engineering questions