Questions
A long thin metallic rod of length l, cross sectional area S and Young's modulus rests on a smooth horizontal surface. A horizontal force P is applied at one end of the rod. Then the elongation produced in the rod is
detailed solution
Correct option is D
(4)a = Acceleration of the rod, a = P/m. If we observe the rod from its frame, then pseudo force ma acts at the COM C of the rod. So under the action of P and ma, elongation produced in the rod is δ=P× ACSγ = P. l2Sγ=Pl2Sγ.Talk to our academic expert!
Similar Questions
A wire elongates by / mm when a load Wis hanged from it. If the wire goes over a pulley and two weights W each are hung at the two ends, the elongation of the wire will be (in mm):
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
