Physics - Trajectory
1. The velocity is a property of an object.
However, the video shows it as the limit of the average
velocity. How can something be a property of an object, but
be found by taking the limit of an operational definition like the
average velocity?
A. The physical definition is an approximation to the
operational definition.
B. The operational definition cannot be found from the physical
definition, because the physical definition is fundamental.
C. The operational definition can be found from the physical
definition from an integral.
D. The physical definition has no real meaning, only the
operational one.
2. What is the direction of the relative velocity
to the trajectory?
A. The derivative of the velocity function is the trajectory of
the object.
B. The derivative of the velocity function is tangential to the
trajectory of the object.
C. The velocity is perpendicular to the trajectory of an
object.
D. The velocity is tangential to the trajectory of an
object.
3. Describe the components of the velocity vector in
relation to the position functions x(t) and y(t).
A. The velocity's components are the tangents to the position
functions.
B. The velocity's components signify the change in the position
functions.
C. the velocity's components are the normals to the position
function.
4. Which are possible initial conditions?
Can select multiple choices
A. The position at the start of the problem.
B. The position at the end of the problem
C. An extreme position at an intermediate time.
D. The velocity at the start of the problem.
E. The velocity at the end of the problem.
5. Which are possible boundary conditions?
Can select multiple choices
A. The position at the start of the problem.
B. The position at the end of the problem
C. The position at an intermediate time
D. The velocity at the start of the problem
E. The velocity at the end of the problem.