|
How can it be tested that the egg is hard boiled or not?
|
|
0
|
535
|
August 19, 2016
|
|
Is radius of gyration of a body a constant quantity?
|
|
0
|
5543
|
August 19, 2016
|
|
What are the factors on which moment of inertia of a body depend?
|
|
0
|
4750
|
August 19, 2016
|
|
What are the two theorems of moment of inertia?
|
|
0
|
723
|
August 19, 2016
|
|
What is rotational analogue of mass of a body?
|
|
0
|
2148
|
August 19, 2016
|
|
A solid sphere rolls down two different inclined planes of the same height but different angles of inclination
|
|
1
|
1969
|
August 19, 2016
|
|
Derive an expression for torque in polar coordinates
|
|
0
|
13869
|
August 19, 2016
|
|
Explain the concept of angular momentum. Also derive an expression for angular momentum in cartesian co-ordinate
|
|
1
|
9421
|
August 19, 2016
|
|
A non-uniform bar of weight W is suspended at rest by two strings of negligible weight as shown in figure
|
|
1
|
2925
|
August 19, 2016
|
|
Four bodies have been arranged at the corners of a rectangle shown in figure. Find the centre of mass of the system
|
|
0
|
2616
|
August 19, 2016
|
|
A meter stick is balanced on a knife edge at its centre. When two coins, each of mass 5 g are put one on top of the other at the 12.0 cm mark, the stick is found to be balanced at 45.0 cm. What is the mass of meter stick?
|
|
0
|
5513
|
August 19, 2016
|
|
To maintain a rotor at a uniform angular speed of 200 rad , an engine needs to transmit a torque of 180 Nm. What is the power required by the engine?
|
|
0
|
1522
|
August 19, 2016
|
|
Two particles, each of mass m and speed v, travel in opposite directions along parallel lines separated by a distance d. Show that the vector angular momentum of the two particle system is the same whatever be the point about which the angular momentum is
|
|
0
|
1631
|
August 19, 2016
|
|
A thin rod of length l and mass m has a disc which attached to one of its ends such that rod and disc are coplanar. Find C.M. from the centre of disc, if mass of the disc is M and radius is r
|
|
0
|
2193
|
August 19, 2016
|
|
Distance between earth and moon is 3.8 X ${{10}^{5}}$ km and the mass of earth is 81 times the mass of the moon. Find where the C.M. of earth moon system lies
|
|
0
|
1777
|
August 19, 2016
|
|
A planet revolves around a massive star in a highly elliptical orbit Is its angular momentum conserved over the entire orbit?
|
|
0
|
2336
|
August 19, 2016
|
|
A cylinder of mass 10 kg is rolling perfectly on a plane of inclination 30°. Find the force of friction between the cylinder and the surface of inclined plane
|
|
0
|
3252
|
August 19, 2016
|
|
A solid wooden balls roll down two different inclined planes of different inclination but same height Comment upon their speed and time of descent?
|
|
0
|
512
|
August 19, 2016
|
|
Give some examples of binary system
|
|
0
|
1909
|
August 19, 2016
|
|
Give an expression for angular momentum in vector notations
|
|
0
|
585
|
August 19, 2016
|
|
What is the effect of internal and external forces on file velocity of centre of mass
|
|
0
|
2824
|
August 19, 2016
|
|
Show that momentum is conserved
|
|
0
|
2107
|
August 19, 2016
|
|
Show that centre of mass of a system of two particles lies on the straight line joining them
|
|
0
|
4717
|
August 19, 2016
|
|
Give an expression for work done in rotational motion in terms of torque
|
|
0
|
2582
|
August 19, 2016
|
|
Define torque. What is its physical significance?
|
|
0
|
6020
|
August 19, 2016
|
|
What are essential features of angular momentum
|
|
0
|
1293
|
August 19, 2016
|
|
Why is it easier to balance a bicycle in motion?
|
|
0
|
7075
|
August 19, 2016
|
|
Two equal and opposite forces act on a rigid body. Under what conditions will the body (a) rotate, (b) not rotate?
|
|
0
|
3832
|
August 19, 2016
|
|
If only an external force can change the state of motion of the C.M. of a body, how does it happen that internal force of brakes can bring a vehicle to rest?
|
|
0
|
686
|
August 19, 2016
|
|
Why there are two propellers in the helicopter?
|
|
0
|
5540
|
August 19, 2016
|