1 Newton
. 10 Newtons
Answer:
30 newtons
Explanation:
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c. org
d. organ
please help
12 points
2)Two objects having their masses 3:5 are acted upon by two forces.The forces are in the ration of 5:3. find the ration in their accelerations.
PLEASE SHOW ALONG WITH STEPS (2)
3) A man pushes a box of mass 50 kg with a force of 80 N. What will be the acceleration of the box due to the force? what would be the acceleration if the mass were doubled?
PLEASE SHOW ALONG WITH STEPS(3)
4) How does the force of gravitation between two objects change when the distance between them is reduced to half.
PLEASE SHOW ALONG WITH STEPS (4)
5) Explain what happens to the force between two objects if:
A) the mass of one object is doubled?
B) the distance between the object is tripled.
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6)How will the equations of motion for an object moving with a uniform velocity change?
PLEASE SHOW ALONG WITH STEPS (6)
7)The force of attraction between two bodies is 20N. Calculate the force between them when mass of each body as well as the distance between them are halved.
PLEASE SHOW ALONG WITH STEPS(7)
surface (parallel to the floor or parallel to the ramp). Calculate the work done by:
a) the gravitational force as the box is pushed across the flat ground
b) the gravitational force as the box is pushed up the ramp
c) the force you apply as the box is pushed across the flat ground
d) the force you apply as the box is pushed up the ramp
a) The work done by the gravitational force on the flat surface is zero
b) The work done by the gravitational force on the ramp is -634 J
c) The work done by the applied force on the flat surface is 500 J
d) The work done by the applied force on up along the ramp is 500 J
Explanation:
a)
The work done by a force is given by the equation
where
F is the magnitude of the force
d is the dispalcement of the object
is the angle between the direction of the force and of the displacement
In this problem, we want to calculate the work done by the gravitational force as the box is pushed across the flat ground.
We immediately notice that the gravitational force acts downward, while the displacement is horizontal: therefore, the angle between force and displacement is ; this means that , and therefore, the work done is zero:
b)
In this case, the box is pushed along the ramp. We have:
is the magnitude of the force of gravity, where
m = 50.0 kg is the mass of the box
is the acceleration of gravity
d = 5.00 m is the displacement of the box along the ramp
The ramp is inclined to the horizontal by , therefore the angle between the force of gravity and the displacement of the box (moving up along the ramp) is:
Therefore, the work done by gravity in this case is:
c)
In this case, we want to calculate the work done by the force you apply as the box is pushed across the flat ground.
Here we have:
F = 100.0 N (force applied)
d = 5.00 m (displacement of the box)
(the force is applied parallel to the flat surface, therefore force and displacement have same direction)
Therefore, the work done by the force you apply on the flat ground is:
d)
In this last case, we want to calculate the work done by the force you apply as the box is pushed up along the ramp.
This time we have:
F = 100.0 N (force applied is the same)
d = 5.00 m (displacement of the box is also the same)
(the force is applied parallel to the ramp, therefore force and displacement have again same direction)
Therefore, the work done by the force you apply while pushing the box along the ramp is:
Learn more about work:
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