Question

A force of 3.5 N [60°E of N] and a force of 2.8 N [40°W of S] act on the same object. Find the net force acting on the object and the acceleration of the object.

Answer #1

An applied force of 53.0 N is used to accelerate an object
horizontally to the right across a frictional surface. The object
encounters 41.0 N of friction and it weighs 8.00 kg.
(a) What is the net force acting on the object in the horizontal
direction?
(b) Find the object’s acceleration?

5:Two spacecraft in outer space attract each other with a force
of 200 N. What would the attractive force be if they were twice as
far apart?
a. 5 N b. 400 N c. 25 N d. 100N e. 50 N
7:In straight line motion the
a. acceleration is vertical and the displacement is horizontal
b. acceleration is perpendicular to the displacement c.
acceleration is vertical, while the displacement can be in any
direction d. acceleration is always the same...

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...

An object experiences force of 4 N acting on it during 4 s and
after this force of 6 N in the same direction acting on it during 2
s. What is the magnitude of change of momentum of this object?
a)
28 N*s
b)
16 N*s
c)
12 N*s
d)
20 N*s

4. A mass is attached to a spring with a force
constant of 40 N/m. The spring and mass are set to simple harmonic
motion with a period of 0.50 s on a frictionless, horizontal
surface.
a) What is the mass of the object?
b) What is the frequency of the
oscillations?
c) At which point will the object be at maximum
speed? Minimum speed?
d) At which point will the object be at max
acceleration? Minimum acceleration?

Three forces act on an object. The first force of 10 N acts
east, and the second force of 10 N acts north. If the acceleration
of the object is zero then the third force acts in the

1. While you are seated on a chair, the resultant force on you
is ..?
A. zero
B. up
C. down
D. dependent on your weight
2. Action-reaction forces
A. sometimes act on the same object
B. always act on the same object
C. may be at right angles
D. always act on different objects
3. A net force (F) acclerates a mass (m) with an accleration
(a). If the same net force is applied to mass 2m, then accleration...

Only two horizontal forces act on a 1.2 kg body. One force is
6.4 N, acting due east, and the other is 7.4 N, acting 64° north of
west. What is the magnitude of the body's acceleration?

There are three forces acting on an object. Force 1 is 50 N in
the -x direction. Force 2 is 82 N in the +y direction. Force 3 is
48 N at an angle of 23 degrees below the +x axis. What is the
magnitude of the net force on the object (in N)?

An object with a mass m = 3.5 kg is released from rest at the
top of the ramp. The length of the ramp is 4 m. The object slides
down the ramp reaching a speed of 1.8 m/s at the bottom.
(a) How much time (in sec) does it take the object to reach the
bottom of the ramp? (use kinematics equations)
(b) What is the acceleration of the object (in m/s2 )? (use
kinematics equations)
(c) If the...

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