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
56 views
in Physics by (67.6k points)
closed by
A ligh rod of length 1 m is pivoted at its centre and two masses of 5 kg and 2 kg are hung from the ends as shown in the figure. Find the initial angular acceleration of the rod assuming that it was horizontal in the beginning.
image

1 Answer

0 votes
by (75.1k points)
selected by
 
Best answer
Correct Answer - A::B::D
`tau_(net)=I_(net)xxalpha`
`rarr F_1r_1-F_2r_2=(m_1r_1^2+m-2r_2^2)xxalpha`
`rarr -2xx10xx0.5+5xx10x0.5`
`=[5(1/2)^2+2(1/2)^2]alpha`
`rarr 15=7/4alpha`
`rarr alpha= 60/7=8.57rad/s^2`

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.

Categories

...