Class Management | Help Module #5 Homework Begin Date: 9/29/2020 12:01:00 AM - Due Date: 6/26/2022 11:59:00 PM End Date:

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Class Management Help Module 5 Homework Begin Date 9 29 2020 12 01 00 Am Due Date 6 26 2022 11 59 00 Pm End Date 1 (48.34 KiB) Viewed 42 times

Class Management | Help Module #5 Homework Begin Date: 9/29/2020 12:01:00 AM - Due Date: 6/26/2022 11:59:00 PM End Date: 11/13/2025 11:59:00 PM (5%) Problem 18: To develop muscle tone, a woman lifts a 1.5 kg weight held in her hand. She uses her biceps muscle to flex the lower arm through an angl of 28 50% Part (a) What is the instantaneous angular acceleration if she starts her workout with her arm vertical in the downwards direction? Assume the weight is 26 cm from the elbow joint, her forearm has a moment of inertia of 0.27 kg-m², and the muscle force is 950 N at an effective perpendicular lever arm of 2.5 cm in rad/s2 50% Part (b) How much work does she do in J, assuming she can keep the torque from her muscle constant? net I= sin() cos()) cotan() asin() atan() acotan() cosh Hints: t deduction per hist. Hints remaining tan() X acos() E sinh() tanh() cotanh() Degrees O Radians Submit Hint 78 45 123 0 9 6 XND NOSACKFACE CLEAR All cos HE I give up! Feedback: 0 deduction per feedback Grade Summary Deductions Potential Late Work Late Potential 01 10044 100% 100% Submissions Attempts remaining 999 (0 per attempt) detailed view