Determine the work done by a friction force, Physics

Assignment Help:

The work done by a friction force is:

a) Always positive

b) Always negative

c) Always zero

d) Either positive or negative depending upon the situation.

Ans: The work done by a friction force is always negative.


Related Discussions:- Determine the work done by a friction force

Anthropic principle, weak anthropic principle The conditions compulso...

weak anthropic principle The conditions compulsory for the growth of intelligent life will be met only in certain regions which are restricted in space and time. i.e., the re

Explanation of applications of superconductors, ELECTRICAL MACHINES: Eff...

ELECTRICAL MACHINES: Efforts are being made at present to develop electrical machines and transformers utilising super conductivity calculators. It shows that if we would use co

Kinematics, At serve, a tennis player aims to hit the ball horizontally. W...

At serve, a tennis player aims to hit the ball horizontally. What minimum speed is required for the ball to clear the 0.90 m high net about 15.0 m from the server if the ball is “

Spring force, just after cutting of spring will extension becomes zero or n...

just after cutting of spring will extension becomes zero or not

Working and principle of a nuclear reactor, Illustrate the working and prin...

Illustrate the working and principle of a nuclear reactor with the help of a labeled diagram?

Explain how a p-n junction functions as a rectifier, Explain physically how...

Explain physically how a p-n junction functions as a rectifier. Ans: When a P-N junction diode is forward-biased and applied voltage is increased from zero, hardly any current

Explain gausss law in electrostatics, Explain Gauss's law in electrostatics...

Explain Gauss's law in electrostatics? 1C of charge is same to the charge of n number of electrons in magnitude. What is the value of n? What happens to the force between t

Electronics, tell the fixed transistor bias and describe the design

tell the fixed transistor bias and describe the design

Screw gauge, 1. A screw gauge consists of U- shaped metallic frame F. To on...

1. A screw gauge consists of U- shaped metallic frame F. To one end of this frame, a flat shaft is fixed. On the opposite end of a hollow long cylinder C is fixed. 2. The hollow c

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd