Questions
A particle falls freely near the surface of the earth. Consider a fixed point O (not vertically below the particle) on the ground. Then pickup the incorrect alternative or alternatives.
detailed solution
Correct option is B
The magnitude of angular momentum of particle about O=mvdSince speed v of particle increases, its angular momentum about O increases. Magnitude of torque of gravitational force about O=mgd ⇒ torque is constant.Moment of inertia of particle about O=mr2 Hence MI of particle about O decreases. Angular velocity of particle about O=vsinθr∵v and sinθ increases and r decreases.Thus, angular velocity of particle about O increases.Talk to our academic expert!
Similar Questions
A particle of mass m is projected with velocity v at an angle q with the horizontal. Find its angular momentum about the point of projection when it is at
the highest point of its trajectory.
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
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