Please answer each statement each of the statements, state whether TRUE or FALSE
ID: 2087655 • Letter: P
Question
Please answer each statement
each of the statements, state whether TRUE or FALSE 1. During an erratic motion, the velocity can be dotcribet by a sigus function along the entire path 2. For a constant tangential velocity v, the tangent acceleration has a constant value of 3. The equation of motion is only valid when appli within an inertial frame of reference. 4. The elastic potential energy of a compressed spring is 1 ks 5. If a system of both conservative and nonconservative forces act on a particle, the total work done by the conservative forces equals to the change in kinetic energy . During an impact, impulsive forces can be neglected from the impulse equation 7. If the coefficient of restitution is equal to 1, the principle of conservation of linear momentum does not appl 8. When two particles A and B have a central impact the internal impulse between them is equal, opposite and collinear Graphically, the area under the Force-displacement graph equals to the impulse. 9. 10. For curvilinear motion on a given path, the radius of curvature is a fixed number 11.Planar motion of a body occurs when all particles of the rigid body move along paths which are 12. When a rigid body rotates about a fixed axis, all axis of rotation, move along circular paths. equidistant to a fixed plane particles of the body except those which lie on the 13. All points in a rigid body subjected to either rectilinear or curvilinear translation move with the same velocity and acceleration 14. The line of action of a is the same as that for 15. If two bodies contact one another (e.g. Externally meshing gears), then the points of contact have the same normal acceleration 16. According to the parallel axis theorem lGI md For the same rigid body in a plane, moment of inertia remains the same for all set of parallel axes normal to 17.Explanation / Answer
1. False as it is unsteady
2. False this is radial acceleration relation
3. True but can also be applied in non inertial frame with accounting of force
4. True
5. False total work by conservative forces is equal to energy in system
6. False they are considered only at time of impact
7. False conservation of momentum always holds valid
8. True
9. False area under force time is impulse
10. True
11. True
12. True example can look towards fan
13. True
14. True always passes through CG of body
15. False acceleration is not same
16. True
17. False MOI of body varies in same plane for all set of parallel lines
18. True like in composite sections
19. True
20.True by principle of moments