Angular momentum of the particle rotating with a central force is constant due to
A
constant torque
B
constatn force
C
constant linear momentum
D
zero torque
Text Solution
Verified by Experts
The correct Answer is:
D
(d) We know that `vectau_c = (dvecL_c)/(dt)` `where `vectau_c` torque about the center of mass of the body and `vecL_c`= Angular momentum about the center of mass of the body. Central forces act along the center of mass Therefore torque about center of mass is zero. `when vectau_c =0 then vecL_c = constt.`
Topper's Solved these Questions
ROTATIONAL MOTION
SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise MCQs with one correct answer|1 Videos
MOTION
SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise JEE Main And Advanced|63 Videos
SIMPLE HARMONIC MOTION
SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise JEE Main And Advanced|69 Videos
Similar Questions
Explore conceptually related problems
The angular momentum of a particle is
Angular momentum of the system of particles changes when
Assertion : If a particle moves with a constant velocity, then angular momentum of this particle about any point remains constant. Reason : Angular momentum has the units of Plank's constant.
A particle of mass m is moving in a plane along a circular path of radius r . Its angular momentum about the axis of rotation is L . The centripetal force acting on the particle is.
Angular momentum of a single particle moving with constant speed along circular path :
Three particles are moving as shown in the figure, Calculate the angular momentum of the third particle C , so that the angular momentum of system about point O becomes zero.
Show that the angular momentum about any point of a single particle moving with constant velocity remains constant throughout the motion.
Show that the angular momentum about any point of a single particle moving with constant velocity remains constant throughout the motion. Is there any external torque on the particle ?
A particle has a linear momentum p and position vector r. the angular momentum of this particle about the origin will not be zero under the conditions
SUNIL BATRA (41 YEARS IITJEE PHYSICS)-ROTATIONAL MOTION-MCQs with one correct answer
