1.) How many non-zero components does a velcoity vector have in terms of normal and tangental coordinates, of particle moving along a curved path? A). Three B.) Two C.) One 2.) Work of a spring force (with final position in compressed state, initial postion in undeformed state) is negative. A.) True B.) False 3.) Energy methods are most suited for solving kinetic problems that involve: A.) force and acceleration B.) force, velocity, and displacement C.) force, velocity, and time
1.) How many non-zero components does a velcoity vector have in terms of normal and tangental coordinates, of particle moving along a curved path? A). Three B.) Two C.) One
2.) Work of a spring force (with final position in compressed state, initial postion in undeformed state) is negative. A.) True B.) False
3.) Energy methods are most suited for solving kinetic problems that involve: A.) force and acceleration B.) force, velocity, and displacement C.) force, velocity, and time
4.) Name two distinct advantages of the energy methods:
5.) Must the potential energy of a body of weight W in a gravitational field always be positive? Explain
6.) In a convservative system, the total mechanical energy (composed of kinetic energy and potential energy) is constant. True or False?
7.) A particle must execute curvlinear motion in order for it to have
8.) For the motion of a rigid body to be a translation, the center mass of the body must move along a straight line. A.) True B.) False
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1.) How many non-zero components does a velocity vector have in terms of normal and tangential coordinates, of a particle moving along a curved path?
A). Three
B.) Two
C.) One
Solution:
When a particle moving along a curved path it is having only one non-zero tangential component of velocity.
The velocity vector is always in the direction tangent to the path of motion of a particle.
The velocity is given by;
The non-zero tangential component of velocity is given by;
Answer: When a particle moving along a curved path it is having only one non-zero tangential component of velocity.
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