Satement-1: if there is no external torque on a body about its centre of mass, then the velocity of the center of mass remains constant. Statement-2: The linear momentum of an isolated system remains constant.
A
Statement-1 is true Statement -2 is True, Statement-2 is a correct explanation for Statement -1
B
Statement -1 is True, Statement -2 is True, Statement-2 is NOT a correct explanation for Statement -1
C
Statement-1 is True, Statement-2 is False
D
Statement -1 is False, Statement-2 is True
Text Solution
Verified by Experts
The correct Answer is:
D
(d)Statement-1: For velocity of centre of mass of remain constant the net force acting on a body must be zero. Therefor the statement 1 is false. Statement-2: The linear momentum of an isolated system remain constatn. This statement is true.
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
Assertion : If there is no external torque on a body about its centre of mass, then the velocity of the centre of mass remains constant. Reason : The linear momentum of an isolated system remains constant.
Can the temperature of an isolated system remain constant?
The angular momentum of a moving body remains constant if
Show that in the absence of any external force, the velocity of the centre of mass remains constant.
How much is the torque due to gravity on a body about its centre of mass ?
The total momentum of the universe remains constant. Is this statement true ?
The velocity of centre of mass of the system remains constant, if the total external force acting on the system is.
Statement -1 : When a girl jumbs from a boat, the boat slightly moves away from the shore. and Statement-2 : The total linear momentum of an isolated system remain conserved.
When there is no external torque acting on a body moving in an elliptical path, which of the following quantities remain constant ?
SUNIL BATRA (41 YEARS IITJEE PHYSICS)-ROTATIONAL MOTION-MCQs with one correct answer
