(a) A force F = (5xî + 4yĵ), where F is in newtons and x and...
(a)
A force
F
=
(5xî +
4yĵ),
where
F
is in newtons and x and y are in meters, acts on an object as the object moves in the x-direction from the origin to
x = 5.21 m.
Find the work W =
 |
F ·
dr done by the force on the object (in
J).
J
(b)
What If? Find the work W =
|
F ·
dr done by the force on the object (in J)
if it moves from the origin to (5.21 m, 5.21 m) along a
straight-line path making an angle of 45.0° with the positive
x-axis.
J
Homework Answers
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A force F = cx – 3.00x2 ) i acts on a particle as the particle moves along an x axis, with Ē in newtons, x in meters, and c a constant. At x = 0 m, the particle's kinetic energy is 21.0 ; at x = 4.00 m, it is 12.0 J. Find c. Number Units the tolerance is +/-3% Click if you would like to Show Work for this question: Open Show Work
A force F = (3xi - 2xyj) N acts on an object as the object moves in the .x direction origin to .v 5.00 m (no motion in v-axis). The object has a mass m = 5.00 kg. Find the work done on the object by the force F. lf the object starts from rest, what is the final speed of the object at x = 5.00 m.?
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