subject
Physics, 02.02.2021 19:10 hellicuh

A person pulls a 50. kg box pictured below with a force of 100. N.  The coefficient of kinetic friction is 0.15.  a.    Sketch a force diagram for the box.

b.    How much of the force acts in the direction of motion?  How much energy is transferred (via working) by the person who pulls the box a distance of 10. m?

c.    Is the box moving at constant speed? Explain how you know. What does this tell you about the kinetic energy Ek of the system?

d.    How much energy is stored as internal energy due to friction in the pulling process over the 10.m?
What eventually happens to this energy?

e.    Show that energy is conserved in the system, accounting for all the energy stored and transferred in the process. 


A person pulls a 50. kg box pictured below with a force of 100. N.  The coefficient of kinetic fric

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 23:20
Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.
Answers: 3
question
Physics, 22.06.2019 09:00
Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario
Answers: 1
question
Physics, 22.06.2019 10:20
Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?
Answers: 1
question
Physics, 22.06.2019 18:30
In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.
Answers: 2
You know the right answer?
A person pulls a 50. kg box pictured below with a force of 100. N.  The coefficient of kinetic frict...
Questions
question
Mathematics, 01.02.2020 07:42