If an object is not moving, does that mean that there are no forces acting on it? Explain.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 4, Problem 1CQ

If an object is not moving, does that mean that there are no forces acting on it? Explain.

Expert Solution & Answer

To determine

To describe: Whether no forces are acting on an object when the object is at rest.

Explanation of Solution

Even if an object is at rest, it does not mean no forces are acting on it. Rather consider that the net force on object is 0. That is, all the forces acting on the object sums up to 0.

Consider an example where a box kept on the floor. As the box is in contact with the ground, the ground will exert a normal force on the box, in the direction perpendicular to the ground towards the upward direction.

At the same time the weight force will be acting on the box in downward direction. Hence, the net force sums to be zero and the box rests on the ground.

Conclusion:

Hence, the reason is explained above.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

03:26

Students have asked these similar questions

Use the following information to answer the next question. Two mirrors meet an angle, a, of 105°. A ray of light is incident upon mirror A at an angle, i, of 42°. The ray of light reflects off mirror B and then enters water, as shown below: Incident ray at A Note: This diagram is not to scale. a Air (n = 1.00) Water (n = 1.34) 1) Determine the angle of refraction of the ray of light in the water. B

Hi can u please solve

6. Bending a lens in OpticStudio or OSLO. In either package, create a BK7 singlet lens of 10 mm semi-diameter and with 10 mm thickness. Set the wavelength to the (default) 0.55 microns and a single on-axis field point at infinite object distance. Set the image distance to 200 mm. Make the first surface the stop insure that the lens is fully filled (that is, that the entrance beam has a radius of 10 mm). Use the lens-maker's equation to calculate initial glass curvatures assuming you want a symmetric, bi-convex lens with an effective focal length of 200 mm. Get this working and examine the RMS spot size using the "Text" tab of the Spot Diagram analysis tab (OpticStudio) or the Spd command of the text widnow (OSLO). You should find the lens is far from diffraction limited, with a spot size of more than 100 microns. Now let's optimize this lens. In OpticStudio, create a default merit function optimizing on spot size.Then insert one extra line at the top of the merit function. Assign the…

Answer 2

Textbook Question

Chapter 4, Problem 1CQ

If an object is not moving, does that mean that there are no forces acting on it? Explain.

Expert Solution & Answer

To determine

To describe: Whether no forces are acting on an object when the object is at rest.

Explanation of Solution

Even if an object is at rest, it does not mean no forces are acting on it. Rather consider that the net force on object is 0. That is, all the forces acting on the object sums up to 0.

Consider an example where a box kept on the floor. As the box is in contact with the ground, the ground will exert a normal force on the box, in the direction perpendicular to the ground towards the upward direction.

At the same time the weight force will be acting on the box in downward direction. Hence, the net force sums to be zero and the box rests on the ground.

Conclusion:

Hence, the reason is explained above.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

03:26

Answer 3

Textbook Question

Chapter 4, Problem 1CQ

If an object is not moving, does that mean that there are no forces acting on it? Explain.

Expert Solution & Answer

To determine

To describe: Whether no forces are acting on an object when the object is at rest.

Explanation of Solution

Even if an object is at rest, it does not mean no forces are acting on it. Rather consider that the net force on object is 0. That is, all the forces acting on the object sums up to 0.

Consider an example where a box kept on the floor. As the box is in contact with the ground, the ground will exert a normal force on the box, in the direction perpendicular to the ground towards the upward direction.

At the same time the weight force will be acting on the box in downward direction. Hence, the net force sums to be zero and the box rests on the ground.

Conclusion:

Hence, the reason is explained above.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

03:26

Answer 4

Textbook Question

Chapter 4, Problem 1CQ

If an object is not moving, does that mean that there are no forces acting on it? Explain.

Expert Solution & Answer

To determine

To describe: Whether no forces are acting on an object when the object is at rest.

Explanation of Solution

Even if an object is at rest, it does not mean no forces are acting on it. Rather consider that the net force on object is 0. That is, all the forces acting on the object sums up to 0.

Consider an example where a box kept on the floor. As the box is in contact with the ground, the ground will exert a normal force on the box, in the direction perpendicular to the ground towards the upward direction.

At the same time the weight force will be acting on the box in downward direction. Hence, the net force sums to be zero and the box rests on the ground.

Conclusion:

Hence, the reason is explained above.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

03:26

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

To determine

To describe: Whether no forces are acting on an object when the object is at rest.

Explanation of Solution

Even if an object is at rest, it does not mean no forces are acting on it. Rather consider that the net force on object is 0. That is, all the forces acting on the object sums up to 0.

Consider an example where a box kept on the floor. As the box is in contact with the ground, the ground will exert a normal force on the box, in the direction perpendicular to the ground towards the upward direction.

At the same time the weight force will be acting on the box in downward direction. Hence, the net force sums to be zero and the box rests on the ground.

Conclusion:

Hence, the reason is explained above.

Answer 8

Expert Solution & Answer

To determine

To describe: Whether no forces are acting on an object when the object is at rest.

Explanation of Solution

Even if an object is at rest, it does not mean no forces are acting on it. Rather consider that the net force on object is 0. That is, all the forces acting on the object sums up to 0.

Consider an example where a box kept on the floor. As the box is in contact with the ground, the ground will exert a normal force on the box, in the direction perpendicular to the ground towards the upward direction.

At the same time the weight force will be acting on the box in downward direction. Hence, the net force sums to be zero and the box rests on the ground.

Conclusion:

Hence, the reason is explained above.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

To describe: Whether no forces are acting on an object when the object is at rest.

Answer 12

Explanation of Solution

Even if an object is at rest, it does not mean no forces are acting on it. Rather consider that the net force on object is 0. That is, all the forces acting on the object sums up to 0.

Consider an example where a box kept on the floor. As the box is in contact with the ground, the ground will exert a normal force on the box, in the direction perpendicular to the ground towards the upward direction.

At the same time the weight force will be acting on the box in downward direction. Hence, the net force sums to be zero and the box rests on the ground.

Conclusion:

Hence, the reason is explained above.