Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
6.2k views
in Laws of motion by (48.4k points)

The 20-kg mass is suspended by cables attached to three vertical 2-m posts. Point A is at (0, 1.2, 0) m. Determine the tensions in cables AB, AC, and AD.

1 Answer

0 votes
by (52.4k points)
selected by
 
Best answer

Points A, B, C, and D are located at 

A(0, 1.2, 0), B(0.3, 2, 1),

C(0, 2, -1), D(2, 2, 0)

Write the unit vectors eAB, eAC, eAD

The forces are

The equations of equilibrium are

We have 3 eqns in 3 unknowns solving, we get

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...