In the figure,a constant external force P = 160 N is applied to a 20.0-kg box,which is on a rough horizontal surface.While the force pushes the box a distance of 8.00 m,the speed changes from 0.500 m/s to 2.60 m/s.The work done by friction during this process is closest to 
A) -1040 J.
B) +1110 J.
C) +1170 J.
D) +1040 J.
E) -1170 J.
Correct Answer:
Verified
Q4: An airplane flies 120 km at a
Q20: You do 174 J of work while
Q21: A 900-kg car traveling east at 15.0
Q23: A block slides down a frictionless inclined
Q36: A 1000-kg car approaches an intersection traveling
Q46: A plate falls vertically to the floor
Q53: A 5.00-kg box slides 4.00 m across
Q121: A firecracker breaks up into several pieces,one
Q389: In the figure,two boxes,each of mass 24
Q390: A force ![]()
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents