Consider the two forces acting on the person who stands still-namely, the downward pull of gravity and the upward support of the floor. Are these forces equal and opposite? Do they form an action-reaction pair? Why or why not?

Q: In the example of a box on a horozontal frictionless floor, if I push the 2kg box with 20 N of…

A: Given: The mass of the object is 2 kg. The applied force on the object is 20 N.

Q: When a 100 N bag of nails hangs motionless from a single vertical strand of rope, how many newtons…

A: SOlution: Given that a 100 N bag of nails hangs motionless from a single vertical strand of rope and…

Q: An apple weighs 1 N. The net force on the apple when it is in free fall is   answer choices  0 N.…

A: Third option (1N) is correct. Explanation-  Given that, Weight of apple (w) = 1N Since, we know…

Q: Two blocks (A) and (B) of respective masses ma = 2 kg and mg = 3 kg, are placed in contact side by…

A: Answer:-  12 N  Given  Mass of block A (mA) = 2 kg  Mass of block B(mB) = 3 kg  Force (F) = 20 N…

Q: An object of mass 4 kg originally suspended by a vertical cord is pulled by a horizontal force until…

A: Write the given data. m=4 kg In this case, if system is at rest then the tension in cord will be…

Q: A box with a mass of 5 kg accelerates its speed in a straight line, increasing it from 5 m/s to 8…

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Q: Two blocks X and Y, of masses M and 3M respectively, are accelerated along a smooth horizontal…

A: Answer :-  Given  Mass of block X = M  Mass of block Y = 3M  The force F  applied to block X,…

Q: True or False?  If at a particular moment the instantaneous acceleration of an object is non-zero…

A: Please see the answer below

Q: Now that you have tension, focus on the forces acting on the apple. Considering that the apple is…

A: In this question they said that we have tension, focus on the forces acting on the apple.…

Q: A body of unknown mass and resting on a horizontal ground is applied an upward force of 100 N at a…

A: Given data:  Upward force (F) = 100 N Normal force (FN) = 96 N Required: Mass of the body  FBD

Q: Which of the following results to the acceleration?   External Net Force Internal Net Force…

A: Net external force is responsible for acceleration .          Acceleration (a) = Fext/m  Net…

Q: - The diagram below shows the magnitudes and directions of three forces applied on a particle at P.…

A: F1 = 5 N F2 = 4 N F3 = 7 N

Q: Compute the vertical and horizontal components of F for the given values of F and angle. The angle…

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Q: What is the magnitude of the normal force? Mass=17 kg

A: The normal force by the ground on the cart is calculated by using the formula N=mg , where m=17 kg…

Q: You are pushing a 40 kg sled across some snow with a coefficient of friction of 0.2. How much force…

A: Answer :  The force required to push must be 78.4N .

Q: mass of 30 kg which is pulled by the force of 60 N with the angle of 30 degree above the horizontal…

A: We know that the  object of  mass m is on the horizontal smooth surface is pulled by the force F…

Q: Two forces act on a box. One is 45 N acting right, the other is 35 N acting straight up. Calculate…

A: Given data: Force along the right side or +x-direction (Fx) = 45 N Force acts straight up or…

Q: Artikulo Uno. Which of the following situations illustrate Newton's First Law of motion? A. An Isko…

A: Introduction: According to Newton's law of motion, an object remains in its state of motion until an…

Q: Assume the three blocks (m₁ = 1.0 kg, m₂ = 2.0 kg, and m₂ = 4.0 kg) portrayed in the figure below…

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Q: 3 2 Fp 1 Three boxes are stacked on a frictionless surface as shown. A person pulls on box 1 with a…

A: Given,Applied force, F = 145 NAngle, θ= 20°The mass of the box 1, M1 = 4 kgThe mass of the box 2, M2…

Q: At what position (other than infinitely remote ones) can the 49.0 kg object be placed so as to…

A: For the net gravitational forces on the mass to be equal,

Q: Find the tension forces on the strings attached to a box hanging on the ceiling at both ends, making…

A: First we draw free body diagram of the given data: Given data:                     Angle θ1=33.2°…

Q: The of the tension force of the string is: Choices: greatest in I greatest in II greatest in III…

A: For Equilibrum forces must be balanced

Q: Newton's  Laws includes which of the following?   1.Object in motion stays in motion 2.No external…

A: There are three Newton's laws of motion.  1. If an object is at rest it remains at rest, or it is in…

Q: A man weighing 800 Newtons is standing in an elevator. If the elevator rises with an acceleration of…

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Q: As you stand on a floor,does the floor exert an upward force against your feet? How much force does…

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Q: An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the…

A: In this question we have to calculate which is greater T or w. Please give positive feedback if the…

Q: A person of weight 480 N stands on a scale in an elevator . What will the scale be reading when the…

A: Given, Weight of person W = 480 N Acceleration a = 4 m/s2

Q: Two objects of masses m1 and m2, with m1 greater than m2, are connected by a string and sit on a…

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Q: . An art student is designing a funky hanging sculpture in which three identical flying saucer…

A: Given: The maximum tension in the string is 90 N. The string is identical.

Q: When a particle is operated upon by a/an ____, its acceleration is proportional to the resultant of…

A: acceleration is proportional to the resultant of the force system, when

Q: 15. Which is TRUE when the resultant of all the forces acting on the body is zero? Group of answer…

A: Given net force on body is zero ∑F =0

Q: Consider a person standing on a scale in an elevator. If the elevator accelerates upwards with an…

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Q: An object with a mass of 2000 g accelerates 8.3 m/s when an unknown force is applied to it. What is…

A: According to Newton's 2nd Law:   F = ma                                 ...... (1)               (…

Q: The crate A weighs 780 lb. Between all contacting surfaces, μs = 0.34 and μk = 0.29. Neglect the…

A: In this question we are given that the crate A weighs 780 lb. Between all contacting surfaces, μs =…

Q: Replace the three forces shown by an equivalent force-couple system at point A. If the forces are…

A: Given, To replace the three forces by an equivalent-force couple system at point A. Part 1: The…

Q: happens to the object when you apply a constant force on it in space? A. It will not move B. It will…

A: According to Newton second law  F = ma acceleration is rate of change of velocity.

Q: instead the elevator is accelerating upwards at a rate of a = 2.2 m / s^2, what does the scale…

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Q: two blocks of respective masses m1=7 kg and m2​=2 kg which are connected by a massless string and…

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Q: Consider a person standing on a scale in an elavator. If the elevator accelerates upwards with an…

A: Any person standing in a lift feels heavier when lift moves upwards, and similarly he feels lighter…

Q: Easier-than-it-looks. Object mị is attached to another object m2 by a taut string. Object mị is…

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Q: magnet of mass 4.72 kg is suspended from the ceiling by a cord as shown. A large magnet is somewhere…

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Q: You hang an object by means of a vertical string. Two strings in turn support this string. String 1…

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Q: The diagram below shows the Free Body Diagram of the three forces acting on an object of mass 0.30…

A: From the above figure sinθ components of F is cancelled.The total force on the mass in the x…

Q: Two forces of magnitude 30 N and 60 N act simultaneously on a body. Which one of the following…

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Q: By virtue of the 3rd Law of Motion, we are pulled on Earth by gravity and we are also pulling the…

A: The correct option is (a).  i.e  The acceleration of the Earth towards us is negligible due to…