A box of mass 3.0 kg slides down a rough vertical wall. The gravitational force on the box is 29.4 N. When the box reaches a speed of 2.5 m/s, you start pushing on one edge of the box at a 45° angle (use degrees in your calculations throughout this problem) with a constant force of magnitude F, = 23.0 N, as shown in (Eigure 1). There is now a frictional force between the box and the wall of magnitude 13.0 N. How fast is the box sliding 3.0 s after you started pushing on it? I Review | Constants Still using our simplified model (in which we do not know the magnitudes of the forces), draw a free-body diagram showing all the forces acting on the box after you start pushing on it. The positive y axis is taken to be upward. The black dot represents the box. Since our model is about having constant forces of unknown magnitude, you do not need to draw the vectors to scale, but your final diagram should be physically reasonable. Draw the vectors starting at the black dot. The location and orientation of the vectors will be graded. The relative lengths of the vectors will not be graded. Figure < 1 of 1 Vectors: i Normal force ed Fc Gravitational force f Friction force F, Pushing force

A box of mass 3.0 kg slides down a rough vertical wall. The gravitational force on the box is 29.4 N. When the box reaches a speed of 2.5 m/s, you start pushing on one edge of the box at a 45° angle (use degrees in your calculations throughout this problem) with a constant force of magnitude F, = 23.0 N, as shown in (Eigure 1). There is now a frictional force between the box and the wall of magnitude 13.0 N. How fast is the box sliding 3.0 s after you started pushing on it? I Review | Constants Still using our simplified model (in which we do not know the magnitudes of the forces), draw a free-body diagram showing all the forces acting on the box after you start pushing on it. The positive y axis is taken to be upward. The black dot represents the box. Since our model is about having constant forces of unknown magnitude, you do not need to draw the vectors to scale, but your final diagram should be physically reasonable. Draw the vectors starting at the black dot. The location and orientation of the vectors will be graded. The relative lengths of the vectors will not be graded. Figure < 1 of 1 Vectors: i Normal force ed Fc Gravitational force f Friction force F, Pushing force

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 2.9CYU: Check Your Understanding Suppose that Balto in Example 2.10 leaves the game to attend to more...

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A box of mass 3.0 kg slides down a rough vertical wall.
The gravitational force on the box is 29.4 N. When
the box reaches a speed of 2.5 m/s, you start pushing
on one edge of the box at a 45° angle (use degrees in
your calculations throughout this problem) with a
constant force of magnitude F, = 23.0 N , as shown in
(Figure 1). There is now a frictional force between the
box and the wall of magnitude 13.0 N. How fast is the
box sliding 3.0 s after you started pushing on it?
I Review | Constants
Still using our simplified model (in which we do not know the magnitudes of the forces), draw a free-body diagram
showing all the forces acting on the box after you start pushing on it. The positive y axis is taken to be upward. The
black dot represents the box. Since our model is about having constant forces of unknown magnitude, you do not
need to draw the vectors to scale, but your final diagram should be physically reasonable.
Draw the vectors starting at the black dot. The location and orientation of the vectors will be graded. The
relative lengths of the vectors will not be graded.
Figure
1 of 1
Vectors:
i Normal force
ed
FG Gravitational force
f Friction force
F,
45°
F, Pushing force

+,
Vectors:
i Normal force
ed
FG Gravitational force
I Friction force
F, Pushing force

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