Home
Class 11
PHYSICS
A Spinning wheel A is brought in contact...

A Spinning wheel A is brought in contact with another wheel, B initially at rest. Becouse of the friction at contact, the second wheel also starts spinning. Which of the following energies of the wheel B increase?

A

Kinetic

B

Total

C

Mechanical

D

Internal

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • HEAT AND TEMPERATURE

    HC VERMA ENGLISH|Exercise Question for Shor Answer|13 Videos

  • GRAVITATION

    HC VERMA ENGLISH|Exercise Question for short Answers|18 Videos

  • HEAT TRANSFER

    HC VERMA ENGLISH|Exercise QUESTIONS FOR SHORT ANSWER|11 Videos

Similar Questions

Explore conceptually related problems

A car moves along a horizontal circular road of radius r with velocity u -The coefficient of friction between the wheels and the road is mu . Which of the following statement is not true?

Two wheels A and B are released from rest from points X and Y respectively on an inclined plane as shown in the figure. Which of the following statement(s) is/are incorrect?

The drwing shows a bicycle wheel of radius r, resting against a small step whose height is h = r//5 . A clockwise torque increases, there comes a time when the wheel just begins to rise up and loses contact with the ground. Let this torque be T. What is the magniitude of the horizontal component of the acceleration of the centre of the wheel when a torque of 2T is applied? Assume that the wheel doesn't slip at the edge of the step when this torque is applied (ignore the mass of the spokes).

A wheel with 4 spokes is placed with its plane perpendicular to a uniform magnetic field B of magnitude 0.5 T. The field is directed into the plane of the paper and is present over the entire region of the wheel as shown in Fig. When the switch S is closed, there is initial current of 6 A between the axis and the rim and the wheel begins to rotate. Resistances of the spokes are 1, 2, 4 and 8 Omega , respectively. Resistance of rim is negligible. a. What is the direction of rotation of the wheel? b. Radius of the wheel is 0.2 m. Calculate initial torque acting on the wheel.

A wheel of radius R=10 cm and moment of inertia I=0.05kg m^(2) is rotating about a fixed horizontal axis O with angular velocity omega_(0)=10rads^(-1) . A uniform riigid rod of mass m=3 kg and length l=50 cm is hinged at one end A such that it can rotate at end A in a vertical plane. End B of the rod is tied with a thread as shown in figure such that the rod is horizontal and is just in contact with the surface of rotating wheel. Horizontal distance between axis of rotation O of cylinder and A is equal to a = 30 cm . If the wheel stops rotating after one second after the thread has burnt, calculate coefficient of friction , mu between the rod and the surface of the wheel. (g = 10 ms^(-2))

A wheel A starts rolling up a rough inclined plane and another identical wheel B starts rolling up a smooth plane having same inclination with the horizontal. If initial velocity of both the wheels is same then:

A wheel of perimeter 4pi is rolling on a horizontal surface. The displacement of the point of contact of wheel and ground when the wheel completes one quarter of revolution is

A wheel is released on a rough horizontal floor after imparting it an initial horizontal velocity v_(0) and angular velocity omega_(0) as shown in the figure below. Point O is the centre of mass of the wheel and point P is its instantaneous point of contact with the groundl. The radius of wheel is r and its radius of gyration about O is k . Coefficient of friction between wheel and ground is mu . A is a fixed point on the ground. If the wheel comes to permanent rest after sometimes, then :

A wheel is released on a rough horizontal floor after imparting it an initial horizontal velocity v_(0) and angular velocity omega_(0) as shown in the figure below. Point O is the centre of mass of the wheel and point P is its instantaneous point of contact with the groundl. The radius of wheel is r and its radius of gyration about O is k . Coefficient of friction between wheel and ground is mu . A is a fixed point on the ground. Which of the following is conserved ?