
(a)
The true weight of the man of mass
(a)

Answer to Problem 6SP
The true weight of the man of mass
Explanation of Solution
Given info: The mass of the man is
Write the expression for the weight.
Here,
Substitute
Conclusion:
Thus, the true weight of the man of mass
(b)
The net force acting on the man required to produce the acceleration.
(b)

Answer to Problem 6SP
The net force acting on the man required to produce the acceleration is
Explanation of Solution
Given info: The mass of the man is
Write the expression for the net force on the man.
Here,
Substitute
Since the acceleration is in the downward direction, the net force will also in the downward direction.
Conclusion:
Thus, the net force acting on the man required to produce the acceleration is
(c)
The force exerted on the man’s feet by the floor of the elevator.
(c)

Answer to Problem 6SP
The force exerted on the man’s feet by the floor of the elevator is
Explanation of Solution
Force exerted on the man’s feet by the floor is in the upward direction.
Write the expression for the net force acting on the man
Here,
The negative sign in the above equation indicate that the normal force is opposite to gravitational force. Since gravitational force is in downward direction normal force is in the upward direction.
Substitute
Conclusion:
Thus, the force exerted on the man’s feet by the floor of the elevator is
(d)
The apparent weight of the man in newtons.
(d)

Answer to Problem 6SP
The apparent weight of the man in newtons is
Explanation of Solution
The apparent weight is the weight is the weight experienced by the man in the elevator.
This is weight measured by a weighing apparatus in an elevator. According to
The normal force on the man by the floor is equal to
Conclusion:
Thus, the apparent weight of the man in newtons is
(e)
The net force acting on the man required to produce the acceleration if the elevator is accelerating upward with an acceleration of
(e)

Answer to Problem 6SP
The net force acting on the man required to produce the acceleration when the elevator is accelerating upward with an acceleration of
Explanation of Solution
Given info: The mass of the man is
Write the expression for the net force on the man.
Substitute
Since the acceleration is in the u direction, the net force will also in the downward direction.
Write the expression for the normal force acting on the man.
Substitute
The apparent weight is the weight is the weight experienced by the man in the elevator.
This is weight measured by a weighing apparatus in an elevator. According to newtons third law this should be equal to normal force acting on the man by the floor.
The normal force on the man by the floor is equal to
Conclusion:
Thus, the net force acting on the man required to produce the acceleration when the elevator is accelerating upward with an acceleration of
Want to see more full solutions like this?
Chapter 4 Solutions
The Physics of Everyday Phenomena
- Four capacitors are connected as shown in the figure below. (Let C = 12.0 µF.) A circuit consists of four capacitors. It begins at point a before the wire splits in two directions. On the upper split, there is a capacitor C followed by a 3.00 µF capacitor. On the lower split, there is a 6.00 µF capacitor. The two splits reconnect and are followed by a 20.0 µF capacitor, which is then followed by point b. (a) Find the equivalent capacitance between points a and b. µF(b) Calculate the charge on each capacitor, taking ΔVab = 16.0 V. 20.0 µF capacitor µC 6.00 µF capacitor µC 3.00 µF capacitor µC capacitor C µCarrow_forwardTwo conductors having net charges of +14.0 µC and -14.0 µC have a potential difference of 14.0 V between them. (a) Determine the capacitance of the system. F (b) What is the potential difference between the two conductors if the charges on each are increased to +196.0 µC and -196.0 µC? Varrow_forwardPlease see the attached image and answer the set of questions with proof.arrow_forward
- How, Please type the whole transcript correctly using comma and periods as needed. I have uploaded the picture of a video on YouTube. Thanks,arrow_forwardA spectra is a graph that has amplitude on the Y-axis and frequency on the X-axis. A harmonic spectra simply draws a vertical line at each frequency that a harmonic would be produced. The height of the line indicates the amplitude at which that harmonic would be produced. If the Fo of a sound is 125 Hz, please sketch a spectra (amplitude on the Y axis, frequency on the X axis) of the harmonic series up to the 4th harmonic. Include actual values on Y and X axis.arrow_forwardSketch a sign wave depicting 3 seconds of wave activity for a 5 Hz tone.arrow_forward
- Sketch a sine wave depicting 3 seconds of wave activity for a 5 Hz tone.arrow_forwardThe drawing shows two long, straight wires that are suspended from the ceiling. The mass per unit length of each wire is 0.050 kg/m. Each of the four strings suspending the wires has a length of 1.2 m. When the wires carry identical currents in opposite directions, the angle between the strings holding the two wires is 20°. (a) Draw the free-body diagram showing the forces that act on the right wire with respect to the x axis. Account for each of the strings separately. (b) What is the current in each wire? 1.2 m 20° I -20° 1.2 marrow_forwardplease solve thisarrow_forward
- please solve everything in detailarrow_forward6). What is the magnitude of the potential difference across the 20-02 resistor? 10 Ω 11 V - -Imm 20 Ω 10 Ω 5.00 10 Ω a. 3.2 V b. 7.8 V C. 11 V d. 5.0 V e. 8.6 Varrow_forward2). How much energy is stored in the 50-μF capacitor when Va - V₁ = 22V? 25 µF b 25 µF 50 µFarrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON





