Questions
A particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration ac is varying with time to as ac= k2rt2 where k is a constant. What is the power delivered to the particle by the forces acting
detailed solution
Correct option is A
a =t2r k2v2r=k2rt2 v =krt tangential acceleration =at=kr power = m at v=mkr krt= mk2r2t power for the centipetal force is zeroTalk to our academic expert!
Similar Questions
A particle travels in a circle of radius 20 cm at a uniformly increasing speed. If the speed changes from 8 to 9 in 2s, what would be the angular acceleration (in rad )? [UK PMT 2015]
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
