If a particle moves on a circular path o...

If a particle moves on a circular path of radius 4 m with time period 4 s, then the change in magnitude of velocity in one- fourth revolution will be

A

`2sqrt2 pi m//s`

B

`pi m//s`

C

`3 pi m//s`

D

`4 pi m//s`

Text Solution

Verified by Experts

The correct Answer is:

A

`Deltav=2v "sin" (theta)/(2)`
`v=r omega =4 xx (2pi)/(4)=2pi`

Topper's Solved these Questions

ATOMS, MOLECULES AND NUCLEI
NIKITA PUBLICATION|Exercise MCQs|443 Videos
COMMUNICATION SYSTEMS
NIKITA PUBLICATION|Exercise Multiple Choice Questions (Examples for Practice)|8 Videos

Similar Questions

Explore conceptually related problems

A particle moves on circular path of radius 5 m with constant speed 5 m/s. Find the magnitude of its average acceleration when it completes half revolution.

If a particle is moving with uniform velocity 20 m//s on a circular track of radius 10 m, then the magnitude of change in velocity in half revolution will be

A particle of mass m is moving on a circular path of radius r with uniform speed v , rate of change of linear momentum is

A particle is moving on a circular path of radius 10m with uniform speed of 4ms^(-1) .The magnitude of change in velocity of particle when it completes a semi circular path is

A particle is moving along circular path of radius 40 m with a uniform speed of 20m//s . Then the time taken for the particle to complete half revolution will be

If a particle of mass 1 gm is moving along a circular path of radius 1 m with a velocity of 1 m/s, then the its angular momentum is

A particle is moving along a circular path of radius 5 m with uniform speed of 5 m//s . What will be time taken by the particle in half revolution?

A cyclist moving on a circular track of radius 100 m completes one revolution in 4 minutes What is his average velocity in one full revolution ?

A particle of mass m moves with constant speed v on a circular path of radius r. Find magnitude of average force on it in half revolution.

A particle is moving on a circular path of radius r with uniform velocity v. The change in velocity when the particle moves from P to Q is (anglePOQ=40^@ )

NIKITA PUBLICATION-CIRCULAR MOTION-Multiple Choice Question

A particle is moving along circular path of radius 40 m with a unifor...
Text Solution
|
The speed of a motor increases from 1200 rpm to 1800 rpm in 20 s . How...
Text Solution
|
If a particle moves on a circular path of radius 4 m with time period ...
Text Solution
|
A particle moves in a circle of radius 25 cm at two revolutions per se...
Text Solution
|
The acceleration of a point on the rim of a flywheel of diameter 1.2 m...
Text Solution
|
A particle is kept fixed on a turntable rotating uniformly. As seen fr...
Text Solution
|
The speed of a body moving in a circle of radius 15 cm changes from 1...
Text Solution
|
In the above problem, the linear acceleration will be
Text Solution
|
The angular speed of second hand in a watch is
Text Solution
|
If a poit on the circumference of a wheel having diameter 4 m has velo...
Text Solution
|
To simulate the acceleration of large rockets, the astronauts are spun...
Text Solution
|
A human body can safely with stand with an acceleration of 10 g m//s^(...
Text Solution
|
If an electric fan revolving at 600 rps is speeded up uniformly to 12...
Text Solution
|
When a motor cyclist takes a U-turn in 4s what is the average angular ...
Text Solution
|
A particle is moving in a circle of radius 20 cm has a linear speed of...
Text Solution
|
The angular speed of a particle,moving in a circle of radius 20 cm ,in...
Text Solution
|
The angular speed of second hand in a watch in deg/s is ,
Text Solution
|
If the blades of an aeroplane are 4 m long and rotate at the rate of 6...
Text Solution
|
A car of mass m moves in a horizontal circular path of radius r meter....
Text Solution
|
A flywheel rotates about a fixed axis and slows down from 200 rpm to 1...
Text Solution
|