A dancer on ice spins faster when she fo...

A dancer on ice spins faster when she folds her arms due to

Decrease in friction

Constant angular momentum

Decrease in angular momentum and decrease in kinetic energy

Increase in angular momentum and increase in kinetic energy

Text Solution

Verified by Experts

Topper's Solved these Questions

SYSTEM OF PARTICLES AND ROTATIONAL MOTION
AAKASH INSTITUTE|Exercise Assignment (Section - B) Objective Type Questions (One option is correct)|57 Videos
SYSTEM OF PARTICLES AND ROTATIONAL MOTION
AAKASH INSTITUTE|Exercise Assignment (Section - C) Objective Type Questions (More than one option are correct)|28 Videos
SYSTEM OF PARTICLES AND ROTATIONAL MOTION
AAKASH INSTITUTE|Exercise Illustration|4 Videos
SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS
AAKASH INSTITUTE|Exercise Assignment (Section-D (Assertion and reason))|5 Videos
TEST 1
AAKASH INSTITUTE|Exercise EXERCISE|9 Videos

Similar Questions

Explore conceptually related problems

A gymnast takes turns with her arms and legs stretched. When she pulls her arms and legs in

An ice skater spins at 3pi" rad s"^(-1) with hers arms extended. If her moment of inertia with arms folded is 75% of that with arms extended, her angular velocity when she fold her arms is

A girl sits on a rolling chair, when she stretch her arms horizontally, her speed is reduced. Principle of conservation of angular momentum is applicable in this situation.

Seema walks to her office, she is facing south when she reaches her office, after starting from home, she turned left twice and then right before reaching her office. Which direction was Seema facing when she started from her home?

A battet dancer spins with 2.8 rps with her arms out stretched. When the moment of inertia about the same axis becomes 0.7 l. the new rate of spin is

A spinning ballet dancer changes the shape of her body by spreading her arms.

AAKASH INSTITUTE-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Assignment (Section - A) Objective Type Questions (One option is correct)

The angular velocity of a body is vecomega=3hati+5hatj+6hatk("radian"/...
Text Solution
|
When a solid cylinder rolls without slipping the ratio of kinetic ener...
Text Solution
|
The torque required to stop a wheel having moment of inertia 5xx10^(-3...
Text Solution
|
The position vector of a point is (3hati-2hatj+6hatk)m. The i^(th) com...
Text Solution
|
A particle performing uniform circular motion gas angular momentum L. ...
Text Solution
|
A thin wire of length l and mass m is bent in the form of a semicircle...
Text Solution
|
A constant torque acting on a uniform circular wheel changes its angul...
Text Solution
|
Which of the following is correct ? (symbols have their ususal meaning...
Text Solution
|
A dancer on ice spins faster when she folds her arms due to
Text Solution
|
A solid sphere of radius r and mass m rotates about an axis passing th...
Text Solution
|
The moment of inertia of a solid cylinder of density rho, radius of ba...
Text Solution
|
A man is sitting on a rotating stool with his arms outstretched. If su...
Text Solution
|
Radius of gyration has the unit
Text Solution
|
A bomb at rest explodes. The centre of mass
Text Solution
|
If vecA*vecB=|vecAxxvecB|. Then angle between vecA and vecB is
Text Solution
|
Write SI unit of angular momentum:
Text Solution
|
If vecomega=2hati-3hatj+4hatk and vecr=2hati-3hatj+2hatk then the line...
Text Solution
|
The moment of inertia of a body does not depend on
Text Solution
|
A solid sphere, disc and solid cylinder, all of the same mass, are all...
Text Solution
|
A body of mass m slides down an smooth incline and reaches the bottom ...
Text Solution
|