CBSE Class 11-science Answered
A rigid body in mechanical equilibrium is undergoing neither linear nor rotational acceleration; however it could be translating or rotating at a constant velocity.---could not quite understand this.. can u please xplain?
Asked by nilanjana lodh | 20 May, 2011, 07:11: AM
Expert Answer
The necessary conditions for mechanical equilibrium for a system of particles are:
- (i)The vector sum of all external forces is zero;
- (ii) The sum of the moments of all external forces about any line is zero.
- A rigid body is in mechanical equilibrium when the sum of all forces on all particles of the system is zero, and also the sum of all torques on all particles of the system is zero.
A rigid body in mechanical equilibrium is undergoing neither linear nor rotational acceleration; however it could be translating or rotating at a constant velocity.
Therefore for linear or rotational acceleration we required a net force whereas for translating or rotating at a constant velocity,we don't required a net force.
Answered by | 20 May, 2011, 01:58: AM
Concept Videos
-
Systems of Particles and Rotational Motion
This video explains the nature of a rigid body, the centre of mass, the mot... -
Systems of Particles and Rotational Motion
This video explains torque, magnitude of torque and the right hand rule on ... -
Systems of Particles and Rotational Motion
This video explains the moment of inertia, its relation with rotational kin... -
Systems of Particles and Rotational Motion
This video explains the analogy between linear and angular variables of mot... -
Systems of Particles and Rotational Motion
This video explains the analogy between the torque of rotational and linear...
CBSE 11-science - Physics
Asked by priyankaprajapti81 | 04 Nov, 2023, 10:47: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by gdeadshot85 | 14 Jan, 2023, 09:58: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by devanshchauhan325 | 23 Dec, 2022, 07:34: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by koushtubhroy | 20 Dec, 2022, 07:36: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by pushpakumari291279 | 20 Aug, 2022, 08:15: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by adipadmakarri | 26 Sep, 2021, 06:08: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by adipadmakarri | 25 Sep, 2021, 11:18: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by Vipulgautam050 | 26 Aug, 2021, 08:57: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by yashrajgharte24.12dgatl | 09 Aug, 2021, 02:51: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by yashrajgharte24.12dgatl | 04 Aug, 2021, 09:45: PM
ANSWERED BY EXPERT
