Skip to main content
MediumPhysicsRotational motion
+4 / -1
A uniform rod of mass M and length L is pivoted at one end such that it can rotate in a vertical plane. There is negligible friction at the pivot. The free end of the rod is held vertically above the pivot and then released. The angular acceleration of the rod when it makes an angle θ with the vertical is:
A
g sinθ
B
(g/L) sinθ
C
(3g/2L) sinθ
D
6gL sinθ
Previous

The instantaneous angular position of a point on a rotating wheel is given by th

Next

Four thin uniform rods each of length L and mass M are joined to form a square A

More from Rotational motion
Hard

-- 50. A bob of mass m attached to a string rotates in a horizontal circle (conical pendulum). About

Medium

-- 49. Two discs (ω1=2, ω2=5) are brought into contact. Final ω = 4. If I2 = 1x10⁻³ kg m², then I1 i

Hard

-- 48. The moment of inertia of a circular disc (M, R) is I0. Another disc of same mass and thicknes

Hard

-- 47. The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of

Hard

-- 46. Three identical spherical shells, each of mass m and radius r are placed in a row. Consider a

Medium

-- 45. Consider a uniform square plate of side 'a' and mass 'm'. The moment of inertia of this plate

Practice Physics Exams

Full-length mock tests with detailed analytics, rank, and percentile.

Browse Exams