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

Describe power of a lens, Describe power of a lens. Write its SI unit. What...

Describe power of a lens. Write its SI unit. What do you mean by linear magnification produced by a lens in a direction perpendicular to its axis? Write down the mathematical expre

Find the lowest frequency for which destructive interference, Find the lowe...

Find the lowest frequency for which destructive interference Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase. Speaker B is 2.00 m

Resistors in dc circuits, Resistors in dc circuits: Components are said...

Resistors in dc circuits: Components are said to be in series when they are connected end-to-end providing only one path for the current.  Thus the same current passes through

Hooke''s Law, What is a hypothesis for a Hooke''s Law experiment which was ...

What is a hypothesis for a Hooke''s Law experiment which was completed with a single, series and parallel spring arrangement?

Calculate the entropy change for this process, 6.1 moles of  steam at 100 ...

6.1 moles of  steam at 100 o C are condensed at 100 o C and the resulting water is cooled to 47.1 o C. Calculate the entropy change for this process. (The molar heat capac

Factors on which magnetic force depends, Factors on which Magnetic Force De...

Factors on which Magnetic Force Depends: The magnetic force depends on following factors: 1. Nature of Pole: Like poles repel each other and unlike pole attract each other.

Express the new single black hole, 1. How fast must an object travel for i...

1. How fast must an object travel for its total energy to be (a) 1% more than its rest energy and (b) 99% more than its rest energy. 2. A proton is moving with a constant speed

What is free fall acceleration, What is free fall acceleration? On eart...

What is free fall acceleration? On earth free fall acceleration is 9.81 meters per second per second or 32.2 feet per second per second, not containing air resistance. Aroun

What is the order of the ring, Q. In Newton's ring experiment, the diameter...

Q. In Newton's ring experiment, the diameter of certain order of dark ring is measured to be double that of  the second ring. What is the order of the ring? Data :

What mass of coal can the barge carry in freshwater, An open barge has the ...

An open barge has the dimensions 22x40x12m. If the bargeis made out of 4.0-cm-thick steel plate on each of its four sides and its bottom, what mass of coal can the barge carry in f

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