Question

*Ideally, is it possible for m _{2 larger mass on a
pulley} to be in motion if the net force is zero? If your
answer is “yes,” explain what specific conditions are required for
this to occur. If your answer is “no,” explain in detail why this
cannot occur*

Answer #1

1. Triple the net force on an object is :
mass triples.
acceleration triples.
velocity triples.
2. As you walk along a level floor, the friction force acting on
your feet points in what direction?
In the direction of your motion
Down
Up
Cannot decide from the given information
Opposite to the direction of your motion
speed triples.
momentum triples.
3. Let m be your mass. When you are standing up, the
normal force acting on you from the floor...

Two masses are connected by a string that passes over a pulley.
The mass m1 is 9.2 kg, and the mass m2 is 1.6
kg. When the masses are simultaneously released from rest, what is
the magnitude of their acceleration (in m/s2)? Neglect
any friction.
[Note: if you need to enter a number in scientific notation, use
'e'. For example, 1200 = 1.2e3 and 0.0012 = 1.2e-3. Include several
decimal places in your calculations and your answer to avoid
rounding...

Suppose a small car collides with a truck that has a mass five
times larger. Is the force the car does on the truck smaller, the
same or larger than the force the truck exerts on the car. Please
justify your answer.
Furthermore, what is the relationship between the impulse and
the change in momentum of an object?

(a) Use energy ideas to set up an equation that describes the
motion of a mass moving horizontally under the influence of a
linear spring force. Neglect air resistance and friction. Solve
your equation to obtain expressions for the object’s position,
velocity and acceleration as functions of time. Obtain an
expression for the angular frequency of the oscillation. Clearly
define all quantities you need to do this. Show and explain each
step, and be clear about what your answers are...

object of mass 17.0-kg subjected to a non-zero net force moves
with an acceleration of (5.00î − 5.00ĵ) m/s2. (a) Determine the
magnitude and direction of the net force acting on it. magnitude
106 Incorrect: Your answer is incorrect. As per Newton's second law
what is the relationship between force, mass, and acceleration? N
direction 45 Incorrect: Your answer is incorrect. Review rules
governing components of a vector.° counterclockwise from the +x
axis (b) What acceleration would a 59.5-kg object...

A very large mass-spring system has stiffness 186 N/m,
mass 0.33 kg, and is oriented horizontally atop a level
table. The system released with initial compression of of 5
cm and initial speed 2 m/s.
a What is the maximum stretch of the spring during the motion in
m?
b What is the maximum speed that the mass obtains in
m/s?
c If the friction force is on average Fu =
0.065 N, what is the change in energy per...

The center of mass of a car of mass M is located midway between
the front- and rear wheels, at a distance h from the ground. The
distance between the front and the rear wheels is d.
a) The car is moving forward on a horizontal surface with a
constant acceleration A. In a system that is accelerating with the
car, what can be said about the horizontal forces that is acting on
the car?
b) What is the ratio...

Three identical very dense masses of 4100 kgeach are placed on
the x axis. One mass is at x1 = -150 cm , one is
at the origin, and one is at x2 = 300 cm .
What is the magnitude of the net gravitational force
Fgrav on the mass at the origin due to the other two
masses?
Take the gravitational constant to be G =
6.67×10?11 N?m2/kg2 .
Express your answer in newtons to three significant figures.

1.) A block of mass 0.40 kg is attached to the wire connected to
the wall making an angle of 90 degrees with it. It is also attached
to the ceiling with the wire making an angle of 53 degrees with the
horizontal. Calculate tensions at each wire. (s the tension in the
wire hinged to the ??wall and is the tension in the wire attached
to the ceiling).
2.) A 5.0 kg wood block is on ice being pulled...

A block with mass 6.00 kg slides on a horizontal floor as it is
pulled with a string by a force of 50.0 N at an angle of 30.0° with
the horizontal.
The force of friction between the floor and the block is 10
N.
A. Draw below a free body diagram for the block. Label all the
forces and describe each force: name and source of the force.
B. Find the y-component of the net force. Explain your
answer....

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