The c.g. of a link in any mechanism would experiencea)no accelerationb...
The correct answer is option 'D' - both angular and linear accelerations. Let's understand why this is the case:
Explanation:
1. Motion of a Link: In a mechanism, a link is a rigid body that connects two or more elements. The motion of a link can be both translational (linear) and rotational (angular) depending on the type of mechanism and the motion it is designed to produce.
2. Center of Gravity (c.g.): The center of gravity of a link is the point through which the entire weight of the link appears to act. It is the point where all the gravitational forces acting on the individual particles of the link can be considered to be concentrated.
3. Acceleration: Acceleration is the rate of change of velocity. In the case of a link in a mechanism, the velocity of the link can change in both linear and angular directions. Therefore, the acceleration of the center of gravity of the link can be both linear and angular.
4. Linear Acceleration: Linear acceleration refers to the change in linear velocity of an object. If a link is moving in a straight line, its center of gravity will experience linear acceleration. This can occur when the link is part of a mechanism that produces translational motion, such as a slider-crank mechanism.
5. Angular Acceleration: Angular acceleration refers to the change in angular velocity of an object. If a link is rotating about an axis, its center of gravity will experience angular acceleration. This can occur when the link is part of a mechanism that produces rotational motion, such as a crankshaft in an engine.
6. Combined Accelerations: In many mechanisms, the motion of a link may involve both linear and angular components simultaneously. For example, in a four-bar linkage, the motion of the link will have both linear and angular components. In such cases, the center of gravity of the link will experience both linear and angular accelerations.
Hence, the correct answer is option 'D' - both angular and linear accelerations, as the center of gravity of a link in any mechanism can experience both types of accelerations depending on the nature of the motion.
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.