PHYS 204 |QUESTIONS & ANSWERS VERIFIED SOLUTIONS
100%|GRADE A+|LATEST 2024/2025
Can the equations of kinematics be used in a situation in which the acceleration
varies in time? - ✔✔No
Can the equations of kinematics be used when the acceleration is zero? - ✔✔Yes
Two cars are moving in the same direction in parallel lanes along a highway. At
some instant, the velocity of car A exceeds the velocity of car B. Does this mean
that the acceleration of A is greater than that of B? - ✔✔No
If you know the position vectors of a particle at two points along its path and also
know the time it took to get from one point to the other, can you determine the
particle's instantaneous velocity and average velocity? (Select all that apply.)
Neither average velocity nor instantaneous velocity can be determined
The instantaneous velocity can be determined
The average velocity can be determined
Both average velocity and instantaneous velocity can be determined - ✔✔The
average velocity can be determined
How can a driver steer a car traveling at constant speed so that the acceleration is
zero? (Assume that the road is level. Select all that apply.)
on a circular path
on a straight line
, on a parabolic path
on an elliptical path - ✔✔on a straight line
How can a driver steer a car traveling at constant speed so that the magnitude of
the acceleration remains constant. (Assume that the road is level. Select all that
apply.)
on a circular path
on a straight line
on a parabolic path
on an elliptical path - ✔✔on a circular path
on a straight line
A projectile is launched at some angle to the horizontal with some initial speed vi,
and air resistance is negligible.
(a) Is the projectile a freely falling body? - ✔✔Yes
Which of the following particles, if any, have an acceleration?
a particle moving in a straight line with constant speed
a particle moving around a curve with constant speed
Neither of the particles has an acceleration. - ✔✔a particle moving around a curve
with constant speed
In the figure below, a locomotive has broken through the wall of a train station.
During the collision, what can be said about the force exerted by the locomotive on
the wall?
100%|GRADE A+|LATEST 2024/2025
Can the equations of kinematics be used in a situation in which the acceleration
varies in time? - ✔✔No
Can the equations of kinematics be used when the acceleration is zero? - ✔✔Yes
Two cars are moving in the same direction in parallel lanes along a highway. At
some instant, the velocity of car A exceeds the velocity of car B. Does this mean
that the acceleration of A is greater than that of B? - ✔✔No
If you know the position vectors of a particle at two points along its path and also
know the time it took to get from one point to the other, can you determine the
particle's instantaneous velocity and average velocity? (Select all that apply.)
Neither average velocity nor instantaneous velocity can be determined
The instantaneous velocity can be determined
The average velocity can be determined
Both average velocity and instantaneous velocity can be determined - ✔✔The
average velocity can be determined
How can a driver steer a car traveling at constant speed so that the acceleration is
zero? (Assume that the road is level. Select all that apply.)
on a circular path
on a straight line
, on a parabolic path
on an elliptical path - ✔✔on a straight line
How can a driver steer a car traveling at constant speed so that the magnitude of
the acceleration remains constant. (Assume that the road is level. Select all that
apply.)
on a circular path
on a straight line
on a parabolic path
on an elliptical path - ✔✔on a circular path
on a straight line
A projectile is launched at some angle to the horizontal with some initial speed vi,
and air resistance is negligible.
(a) Is the projectile a freely falling body? - ✔✔Yes
Which of the following particles, if any, have an acceleration?
a particle moving in a straight line with constant speed
a particle moving around a curve with constant speed
Neither of the particles has an acceleration. - ✔✔a particle moving around a curve
with constant speed
In the figure below, a locomotive has broken through the wall of a train station.
During the collision, what can be said about the force exerted by the locomotive on
the wall?
