Question

1. Describe a situation where the block moves as the force is applied to it, yet the force does no work over a non-zero time interval. How can this be?

2. Set the initial position of the block to zero, and set the initial velocity to —3 m/s. Run the simulation. When is the work negative? When is it positive? Why?

3. Since the force is constant, what can you say about the acceleration of the block?

4. How can you maximize the final velocity of the block? Can you do the same amount of work and have the block moving more slowly?

5. Create a graph to represent the force (y-axis) and the position (x-axis).

6. What is the area under the curve of this graph?

Answer #1

1. We know that Force= Work. Displacement.

So, if net displacement of any box is 0, then in that case the work done by force is equal to 0.

Eg- Moving a Box in complete circle, where the starting and ending point is same. In this case, displacement is 0. So is Work Done.

Note : When no specific answer requirement is by you and if mutiple questions are there, we are supposed to provide the answer for main first question and it's subpart.

P.S : Please do give a thumbs up since we as an expert take pain
and take our time out by typing answer in lucid language and
putting best of our knowledge at your doorstep.

Thank you

A. See the procedures below and answer the questions that
follows:
1. Describe a situation where the block moves as the force is
applied to it, yet the force does no work over a non-zero time
interval. How can this be?
2. Set the initial position of the block to zero, and set the
initial velocity to —3 m/s. Run the simulation. When is the work
negative? When is it positive? Why?
3. Since the force is constant, what can...

Say you push on a 5 kg block with a force of
Fa = 20 N, at a 45° angle downward. The
coefficient of kinetic friction between the block and the ground is
?k = 0.3. The coefficient of static friction is unknown,
but it is known that ?s > 0.3. The block is moving
with initial velocity to the right (the +x direction),
v0 = 2 m/s.
a) What is the magnitude of the force of friction on the...

Let's imagine a block on a sheet of ice, with negligible
friction. The block has a mass of 5.00 kg. The block is currently
moving to the right at 3.00 m/s. Let's say a rope is attached to
this block, and it pulls horizontally on the block, also to the
right, with a force of 12.0 N. With this force applied, the block
moves a distance of 3.00 m to the right. How fast is the block
moving at the...

1) The position of an object moving along the x-axis is given by
x(t) = 2t^2 - 21t^2 + 100t. At what time is the object moving the
slowest?
2) A water balloon is thrown upward from a window 25 m above the
ground and hits the ground 3.30 s later. What’s the maximum height
above the window that the balloon reaches?
3) A boy throws a rock with an initial velocity of 5.15 m/s at
an angle 30° above...

A particle moves along the x axis. It is initially at the
position 0.230 m, moving with velocity 0.200 m/s and acceleration
-0.420 m/s2. Suppose it moves with constant acceleration for 5.30
s.
(a) Find the position of the particle after this time. m
(b) Find its velocity at the end of this time interval. m/s We
take the same particle and give it the same initial conditions as
before. Instead of having a constant acceleration, it oscillates in
simple...

You attach a 1 kg block to a horizontal spring with a constant
of k = 25 N/m and set it oscillating on a frictionless surface.
You’ve set up a gate that can read the velocity at the equilibrium
point of the simple harmonic motion and find it is 50 cm/s, moving
to the right. Assume the positive direction is to the right.
What is the angular frequency, ω?
What is the phase angle, φ0, assuming that t = 0...

Finding the Spring Constant
We can describe an oscillating mass in terms of its position,
velocity, and acceleration as a function of time. We can also
describe the system from an energy perspective. In this experiment,
you will measure the position and velocity as a function of time
for an oscillating mass and spring system, and from those data,
plot the kinetic and potential energies of the system.
Energy is present in three forms for the mass and spring system....

VPython Physics 1211k
1. Here is a somewhat more sophisticated program that recreates
one of your experiments – a cart rolling up a ramp and back down.
Particularly pay attention to the components of the
acceleration.
from visual import *
#control the dimensions of the
animation window. Turn off autoscaling. Then set the window to show
20 meters
#in each direction. Then set the
actual physical size of the animation window on the screen
scene.autoscale = False
scene.range = 20...

1. For a stationary ball of mass m = 0.200 kg hanging from a
massless string, draw arrows (click on the “Shapes” tab) showing
the forces acting on the ball (lengths can be arbitrary, but get
the relative lengths of each force roughly correct). For this case
of zero acceleration, use Newton’s 2nd law to find the
magnitude of the tension force in the string, in units of Newtons.
Since we will be considering motion in the horizontal xy plane,...

1. The equation
Δ?=?0?+0.5??2Δx=v0t+0.5at2
Can be used to describe an object's position x. When can this
equation be applied?
Group of answer choices:
A. Displacement must be constant
B. The object must be acted on by no more than one force
C. Velocity must be constant
D. Acceleration must be constant
E. The force acting on the object must be gravity
2. If a vector A has a y component equal to
|?|cos?|A|cosθ, then the angle
?θ is the angle...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 10 minutes ago

asked 14 minutes ago

asked 14 minutes ago

asked 14 minutes ago

asked 15 minutes ago

asked 21 minutes ago

asked 24 minutes ago

asked 24 minutes ago

asked 32 minutes ago

asked 37 minutes ago

asked 40 minutes ago

asked 41 minutes ago