MyQuestionIcon

1

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

Introduction to Radial & Tangential Acceleration

Pictured belo...

Question

Pictured below are four disks rotating counter-clockwise (as viewed from above) at a constant speed. Which disk is experiencing the greatest acceleration?

A

Green

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

B

Red

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

C

Blue

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

D

Yellow

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

E

All disks are experiencing the same acceleration

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

Open in App

Solution

The correct option is A Green
As the disc is moving with a constant speed so its tangential acceleration is constant and due to circular motion it has only centripetal acceleration , which is given by ,
$a = v^{2} / r$
where $r =$ radius and $v =$ velocity ,
$a \propto 1 / r$ (velocity is constant here)
since radius of green ball is smallest therefore it will experience greatest acceleration

Suggest Corrections

thumbs-up

0

Similar questions

Q. Pictured above are four disks rotating counter-clockwise (as viewed from above) at a constant speed. Which disk is experiencing greatest acceleration?

Q. A horizontal disk of moment of inertia 4.25 kg-

m^{2}

with respect to its axis of symmetry is spinning counter clockwise at 15 revolutions per second about its axis, as viewed from above. A second disk of moment of inertia 1.80kg-

m^{2}

with respect to its axis of symmetry is spinning clockwise at 25 revolutions per second as viewed from above about the same axis and is dropped on top of the first disk. The two disks stick together and rotate as one about their axis of symmetry. The new angular velocity of the system as viewed from above is close to.

Q. A horizontal disk of moment of inertia 4.25 kg-

m^{2}

with respect to its axis of symmetry is spinning counter clockwise at 15 revolutions per second about its axis, as viewed from above. A second disk of moment of inertia 1.80kg-

m^{2}

with respect to its axis of symmetry is spinning clockwise at 25 revolutions per second as viewed from above about the same axis and is dropped on top of the first disk. The two disks stick together and rotate as one about their axis of symmetry. The new angular velocity of the system as viewed from above is close to.

Q. A horizontal disk of moment of inertia

4.25 k g - m^{2}

with respect to its axis of symmetry is spinning counter clockwise at

15

revolutions per second about its axis, as viewed from above. A second disk of moment of inertia

1.80 k g - m^{2}

with respect to its axis of symmetry is spinning clockwise at

25

revolutions per second as viewed from above about the same axis and is dropped on top of the first disk.The two disks stick together and rotate as one about their axis of symmetry. The new angular velocity of the system as viewed from above is close to.

Q. A positively charged disk is rotated clockwise as shown in the figure. The direction of the magnetic field at point

A

in the plane of the disk is

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Relative

PHYSICS

Watch in App

explore_more_icon

Explore more

Introduction to Radial & Tangential Acceleration

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon