MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Frictional Force

In which case...

Question

In which case is friction a disadvantage?
(a) running a machine
(b) walking
(c) applying brakes
(d) writing

Open in App

Solution

(a) Running a machine

While running a machine, energy is lost because of friction. Hence, in this case, friction is a disadvantage.

Suggest Corrections

thumbs-up

0

Similar questions

Q. In which of the following cases is friction a disadvantage to us ?

Q. A bus running at a speed of

18 k m / h

2.5

seconds by applying brakes. Calculate the retardation produced.

Q. Friction is
(a) always a disadvantage.
(b) always an advantage.
(c) sometimes a disadvantage and sometimes an advantage.
(d) neither a disadvantage nor an advantage.

Q. A water tanker filled up to two-thirds of its tank with water is running with a uniform speed. When the brakes are suddenly applied, the water in its tank would :

(a) move backward
(b) move forward
(c) rise upwards
(d) remain unaffected

Q. Write answers to the following questions in your own words.
(a) What are the things that can be done by applying force?
(b) What is meant by weight?
(c) Which machines run on muscular force?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

What Friction?

PHYSICS

Watch in App

explore_more_icon

Explore more

Frictional Force

Standard VIII Physics

Join BYJU'S Learning Program

CrossIcon