Question

Zero UCM | (a)Problem Which of the following quantities are zero for an object traveling in a circle at a constant speed? (b)Which of the following quantities are a non-zero constant for an object traveling in a circle at a constant speed? There may be more than one correct answer.

Velocity Acceleration

Net force Radial component of velocity

Tangential component of velocity

Radial component of acceleration

Tangential component of acceleration

Radial component of net force

Tangential component of net force

Answer #1

A) In uniform circular motion, which of the following quantities
are constant?
Check All that Apply, (instantaneous velocity, the tangential
component of velocity, the tangential component of acceleration,
the radial component of acceleration, speed)
B) Which of these quantities are zero throughout the
motion?
Check all that Apply, (instantaneous velocity, the tangential
component of velocity, the tangential component of acceleration,
the radial component of acceleration, speed)

-According to Newton’s First Law, which of the following
statements is true?
a) If an object is in motion, then a force is acting on it.
b) A force is necessary to change the motion of an object.
c) If an object is stationary, then no forces are acting on
it.
d) An object in motion must have an acceleration.
-If an object is in motion, can its acceleration be zero?
-If an object’s acceleration is zero, does that mean...

Which one of the following statements is not possible?
An object has zero velocity and non-zero acceleration
An object travels with a northward velocity and a northward
acceleration
An object travels with a constant velocity and a constant
non-zero acceleration
An object travels with a changing velocity and a constant
acceleration
____________
In a displacement vs. time graph, a sloped (non-horizontal)
line indicates:
The object is moving with constant, non-zero, acceleration
The total displacement of the object is zero...

1.The momentum of an object is not dependent on which one of
the following quantities?
a) acceleration b) inertia
c) mass
d) velocity
2.Which one of the following statements concerning the
momentum of a system when the net force acting on the system has a
positive value is true?
a) The momentum of the system is increasing.
b) The momentum of the system is decreasing.
c) The momentum of the system is equal to zero kg m/s. d)
The...

1. An object of mass M is moves in an x,y plane according the
equations below. The parameters A, B, and C are positive constants.
We are considering its motion for negative and positive values of
t. x equals A t y equals B t minus C t squared Which of the
following are true?
The speed of the object at t=0 is zero.
The acceleration of the object is negative C.
The speed of the object at t=0 is...

Question 1
The study of Uniform Circular Motion relates to objects
traveling with constant speed around a circle with radius, R. Since
the object has a constant speed along a circular path, we can also
say that
A)
the object has zero velocity.
B)
the object has a constant acceleration magnitude.
C)
the object has zero acceleration.
D)
the object has a constant velocity.
E)
the object has an increasing acceleration.
Question 2
Uniform Circular Motion (UCM) problems are just...

Determine if the following is possible for an object and support
if true:
a. speed is 0 meters per second and constant with non zero
acceleration
b. displacement that is constant and non-zero velocity is
constant
c. constant non zero velocity and non constant speed
d. constant non zero speed and non constant velocity

A car moves in circular track with a constant speed. Which of
the following statements is correct? And Explain? Answers: A) It
has a constant velocity B) It requires a force which points in the
radial direction C) It does not need any force D) It requires a
force which points in the tangential direction

Which of the following best describes the net force acting on an
object moving with uniform circular motion? Check all the apply
a. the net force acting on the object is away from the center of
the motion and the acceleration of the object os toward the center
of the motion
b. both net force acting on the object and the acceleration of
the object are away from the center of the motion
c. the net force acting on the...

2.-Aristotle must exert a 160 N force to pull a wagon filled
with wine jugs at a constant velocity. The net force on the wagon
is
3.Which of Newton's laws states that objects remain at rest, or
moving with constant velocity unless acted on by a non-zero net
force?
4.-With what force do you have to pull on a 10 kg wagon full of
ducks to cause it to accelerate at 3 m/s2? Assume the
force of friction is 10N....

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