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Satement-1: if there is no external torq...

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

statements-1 and 2 are true and statement- 2 is a correct explanation for statement-1.

B

statements-1and 2 are true and 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

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SL ARORA-System of particles & rotational Motion-EXERCISE
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  2. Consider a body of mass 1.0 at rest at the origin at time t = 0. A ...

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  3. Satement-1: if there is no external torque on a body about its centre ...

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  4. Satement-1: two cylinder one hollow (metal) and the other side (wood) ...

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  5. The equations x^2 +5x^2 +px +q=0 and x^3+ 7xa+ px+ r =0have two roots ...

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  7. Two discs A and B are mounted coaxially on a vertical axle. The discs ...

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  8. A uniform thin cylindrical disk of mass M and radius R is attaached to...

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  9. A uniform thin cylindrical disk of mass M and radius R is attaached to...

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  10. The general motion of a rigid body can be considered to be a combinati...

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  11. The general motion of a rigid body can be considered to be a combinati...

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  12. Two blocks A and B, each of mass m, are connected by a spring of force...

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  13. A frame of reference that is accelerated with respect to an inertial f...

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  14. One twirls a circular ring (of mass and radius ) near the tip of one’s...

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  15. A ring of mass 1kg and radius 1m is moving with a velocity of 1m//s by...

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  16. Four solid sphereas each of diameter sqrt(5) cm and mass 0.5 kg are pl...

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  17. A binary star consists of two stars A(mass 2.2 Ms) and B (mass 11 Ms)...

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  18. A uniform circular disc of mass 50kg and radius 0.4 m is rotating wi...

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  19. A lamina is made by removing a small disc of diameter 2R from a bigg...

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  20. A horizontal circular platform of radius 0.5 m and mass axis. Two mass...

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