Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Rotational Motion question

2017 · Shift 0 · Q62
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Rotational Motion
  5. /2017 · Shift 0 · Q62

Rotational Motion question

2017 · Shift 0 · Q62

JEE MainPhysicsRotational MotionMCQ+4 / −1
A slender uniform rod of mass M and length lll is pivoted at one end so that it can rotate in a vertical plane (see figure). There is negligible friction at the pivot. The free end is held vertically above the pivot and then released. The angular acceleration of the rod when it makes an angle θ\thetaθ with the vertical is JEE Main 2017 (Offline) Physics - Rotational Motion Question 206 English
  1. A
    2g3lcos⁡θ{{2g} \over {3l}}\cos \theta3l2g​cosθ
  2. B
    3g2lsin⁡θ{{3g} \over {2l}}\sin \theta2l3g​sinθ
  3. C
    2g3lsin⁡θ{{2g} \over {3l}}\sin \theta3l2g​sinθ
  4. D
    3g3lsin⁡θ{{3g} \over {3l}}\sin \theta3l3g​sinθ
PreviousNext

More from Rotational Motion

  • The moment of inertia of a uniform cylinder of length l and radius R about its perpendicular bisector is I. What is the ratio Rl​ such that the moment of inertia is minimum?2017 · MCQ
  • A cubical block of side 30 cm is moving with velocity 2 ms−1 on a smooth horizontal surface. The surface has a bump at a point O as shown in figure. The angular velocity (in rad/s) of the block immediately after it hits the bump, is : Includes diagram2016 · MCQ
  • Concrete mixture is made by mixing cement, stone and sand in a rotating cylindrical drum. If the drum rotates too fast, the ingredients remain stuck to the wall of the drum and proper mixing of ingredients does not take place. The maximum…2016 · MCQ
  • A particle of mass m is moving along the side of a square of side ‘a’, with a uniform speed v in the x-y plane as shown in the figure : Which of the following statements is false for the angular momentum L about the… Includes diagram2016 · Multiple correct
  • A roller is made by joining together two cones at their vertices 0. It is kept on two rails AB and CD, which are placed asymmetrically (see figure), with its axis perpendicular to CD and its center O at the center of line joining… Includes diagram2016 · MCQ
  • From a solid sphere of mass M and radius R a cube of maximum possible volume is cut. Moment of inertia of cube about an axis passing through its center and perpendicular to one of its face is:2015 · MCQ
  • A mass ′m′ is supported by a massless string wound around a uniform hollow cylinder of mass m and radius R. If the string does not slip on the cylinder, with what acceleration will the mass fall or release? Includes diagram2014 · MCQ
  • A bob of mass m attached to an inextensible string of length l is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed ωrad/s about the vertical. About the point of suspension:2014 · MCQ