MyQuestionIcon

1

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

Work Done by Friction

A circular di...

Question

A circular disc of mass M and radius R is connected to spring and placed on rough surface. The friction is sufficient for pure rolling. When the disc is slightly displaced and released, it executes simple harmonic motion.

When the disc is executing S.H.M

A

friction does positive work

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

friction does negative work

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

net work done by friction is zero

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

all of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C net work done by friction is zero
The work done by friction during pure rolling is zero

Suggest Corrections

thumbs-up

0

Similar questions

Q. A circular disc of mass M and radius R is connected to spring and placed on rough surface. The friction is sufficient for pure rolling. When the disc is slightly displaced and released, it executes simple harmonic motion.

The time period of oscillations of the disc

Q. A circular disc of mass M and radius R is connected to spring and placed on rough surface. The friction is sufficient for pure rolling. When the disc is slightly displaced and released, it executes simple harmonic motion.

μ

be the coefficient of friction between the disc and ground, the amplitude A of oscillations for which no slipping occurs is

Q. A disc of mass

m

is connected to an ideal spring of force constant '

k .

' If the disc is released from rest then what is maximum friction force on the disc (in N). Assuming friction is sufficient for pure rolling.

Q. The assembly of two discs as shown in figure is placed on a rough horizontal surface and the front disc is given an initial angular velocity

ω_{0}

Determine the final linear and angular velocity when both the discs start rolling. It is given that friction is sufficient 10 sustain rolling in the rear wheel from the starting of motion.

Q. Two identical discs of mass M and radius R are connected by a light rod. The assembly rests at a corner, the vertical wall is smooth and there is sufficient friction on the floor to ensure pure rolling of disc B. The system starts from position

θ = 0

. Find the velocity of the midpoint of the rod when

θ = 60^{o}

.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

So You Think You Know Work?

PHYSICS

Watch in App

explore_more_icon

Explore more

Work Done by Friction

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon