Please Answer this as soon as possible. Thank you 14. All the points on a transl

Question

Please Answer this as soon as possible. Thank you

14. All the points on a translating body may move with different velocity and acceleration. TRUE 1. If the work of a force is independent of the path and depends only on the force's initial and final positions FALSE 2. When a particle is acted upon by a system of both conservative and nonconservative forces, the portion on the path, then we can classify this force as a Conservative Force TRUE 15. All points in a rigid body subjected to cither rectilinear or cuvilinear translation move with the different velocity and acceleration. TRUE of the work done by the conservative forces can be written in terms of the difference in their potential FALSE 3. The conservation of energy equation can be used to solve problems involving velocity, displacement, and FALSE 16. The force developed by an elastic spring is a Non conservative force. energies TRUE TRUE FALSE 17. The planar motion of a body occurs when all the particles of a rigid body move along paths which are FALSE 18. A body can undergo two types of translation. During rectilincar translation all points follow parallel conservative force systems equidistant from a fixed plane. TRUE TRUE 4. The conservation of linear momentum is often applied when particles collide or interact. TRUE straight-line paths, and during curvilincar translation the points follow curved paths that are the same shape and are equidistant from one another. 5. Impulsive forces normally occur due to an explosion or the striking of one body against another, whereas nonimpulsive forces may include the weight of a body, the force imparted by a slightly deformed spring having a relatively small stiffness, or for that matter, any force that is very small compared to other larger TRUE FALSE 19. A body subjected to general plane motion undergoes a simultaneous translation and rotation (impulsive) forces. TRUE FALSE 20. The instantaneous center of rotation (IC) can be established provided the directions of the velocities of FALSE TRUE FALSE 6. During the very short time of interaction, the force of the racket on the ball is impulsive since it changes FALSE 7. The conservation of linear momentum applies to the system in a direction which either has no external FALSE 8. Impact occurs when two bodies collide with each other during a very short period of time, causing FALSE 9. Central impact occurs when the direction of motion of the mass centers of the two colliding particles is FALSE 10. The angular momentum of a particle about point O is defined as the "moment" of the particle's linear FALSE 11. When the motion of one or both of the particles make an angle with the line of impact, the impact is said FALSE 12. If the impact is perfectly elastic, energy is lost in the collision; whereas if the collision is plastic, no any two points on the body are known, or the velocity of a point and the angular velocity are known. the ball's momentum drastically TRUE TRUE 21. Although the IC may be conveniently used to determine the velocity of any point in a body, it generally does not have zero acceleration and therefore it should not be used for finding the accelerations of points forces or the forces can be considered nonimpulsive. TRUE TRUE 22. If two bodies contact one another without slipping. and the points in contact move along different paths., relatively large (impulsive) forces to be exerted between the bodies. then the tangential components of acceleration of the points will be the same, however, the normal FALSE 23. If the motion of a point on a body or the angular motion of a line is known, then it may be possible to FALSE 24. The acceleration of any particle has two components. The tangential component accounts for the change TRUE components will generally not be the same TRUE along a line passing through the mass centers of the particles. TRUE relate this motion to that of another point or line using an absolute motion analysis TRUE momentum about O. TRUE in the magnitude of the velocity, and the normal component accounts for the change in the velocity's FALSE 25. The moment of inertia is a measure of the resistance of a body to angular acceleration, in the same way TRUE to be Central impact. TRUE that mass is a measure of the body's resistance to acceleration energy lost during collision. TRUE FALSE TRUE 13. Ifan external impulse is applied to the particle, both linear and angular momentum will be conserved. TRUE FALSE MENG 233 Page 2 of 3 MENG 233 Page 3 of 3

Explanation / Answer

1. True

This is the definition of conservative forces. If work done by a force doesnot depend on path followed rather it depend on initial and final position of force, these type of forces are known as conservative forces. Example- Gravitational force

2. False

The term potential energy is only associated with conservative forces. Hence, statement is wrong

3. True

Consevation of energy equation can be easily used to solve problems involving velocity, displacement aand forces. It can also be extended to the problem involving power.

4. True

Conservation of linear momentum states that the momentum of a mass in motion is conserved if there is no external force applied to the mass. It is often applied in collision of body problems.

5. True

Impulsive forces are large forces which are applied for short interval of time. These forces drastically changes linear momentum of body. So, explosion or stricking of one body against other produces impulsive force.

6. True

Striking of racket with ball is a short time interval phenomenon and it transfer large amount of linear momentum to ball

7. False

Conservation of linear momentum can only be applied when there is no external force involve

8. True

Impulse force occur when large amount of force is exerted between body for very short interval of time

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