EASY
AP EAPCET
IMPORTANT
Earn 100
The centre of mass of a ring is ___.
(a)Outside the material region(matter) of the body, at the centre of symmetry.
(b)Within the material region(matter) of the body, at the centre of symmetry.
(c)Along a tangent of the ring.
(d)Perpendicular to edge of a ring.
50% studentsanswered this correctly
Important Questions on Centre of Mass
HARD
AP EAPCET
IMPORTANT
A ball falls freely from a height onto the ground and rebounds a number of times. The coefficient of restitution is and . Then match the quantities given in List - I with their corresponding values in SI units given in List-II
List-I | List-II | ||
(A) | The height it reaches after the first impact | (I) | |
(B) | The total distance travelled by it before it comes to rest | (II) | |
(C) | The time taken to reach the ground first time | (III) | |
(D) | The vertical displacement before it comes to rest | (IV) |
The correct answer is