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To tighten the bolt, we prefer to use a ...

To tighten the bolt, we prefer to use a wrench with a long arm why?

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Torque `vect=vecrxxvecf` = long arm `xx` force. When are (r ) is long, the torque is increased. Thus a smaller force can produce a large turning effect.
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KUMAR PRAKASHAN-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-SECTION-C OBJECTIVE QUESTIONS (VSQs)
  1. The unit of torque and work are same but they are not a same physical ...

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  2. What does torque measured in rotational motion?

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  3. To tighten the bolt, we prefer to use a wrench with a long arm why?

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  4. Handle of the door is always kept on other side (far side) of the hing...

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  5. We can not need to apply the force an all particles of door for openin...

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  6. What is the magnitude of torque for a body circulating with constant a...

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  7. Can a body have the momentum if it moves along a straight path?

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  8. If we change the axis of rotation does the magnitude of angular moment...

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  9. Any rigid body can have more than one value of moment of inertia?

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  10. What is physical quantity of the unit Joule xx" second"^(2)?

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  11. When does the magnitude of angular momentum will be zero?

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  12. Write the dimensional formula of ("Angular momentum")/("Linear momen...

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  13. If the ice in the polar caps of earth melts, how will it affect angula...

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  14. Write the necessary condition for solid cylinder rolling down without ...

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  15. Can we use v=romega for a body rolling without sliding?

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  16. What is radius of gyration? Write its unit and dimensional formula.

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  17. The angular velocity of a particle rotates with constant speed on only...

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  18. Is the linear velocity of a particle moving with constant angular spee...

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  19. Write formula of vector form for the angular velocity and linear veloc...

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  20. Which component of linear acceleration of a particle moving in a const...

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