The angular speed of a car while taking a circular turn of radius 100m at 36 km/hour, is_______________?
(A) 0.1 radian/sec
(B) 1 radian/sec
(C) 100 radian/sec
(D) 1000 radian/sec
The ratio of the speed of a rolling cylinder to the speed of sliding cylinder is_______________?
(A) less than 1
(B) equal to 1
(C) between 1 and 2
(D) greater than 2
A flywheel of moment of inertia 20 kg-m” is acted upon by a tangential force of 5 N at 2 m from its axis, for 3 seconds. The increase in angular velocity in radian persecond is__________________?
(A) 1/2
(B) 3/2
(C) 2
(D) 3
The dimensions of Gravitational Universal constant ‘G’ are______________?
(A) M-‘L2r2
(B) M-‘L3r2
(C) M-2L3T2
(D) M’L3T2
The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to____________________?
(A) log r
(B) r
(C) r2
(D) 1/r
At the instantaneous center, the velocity of the moving lamina at any instant is_________________?
(A) zero
(B) maximum
(C) minimum
(D) varying
Which of the following represents the state of neutral equilibrium ?
(A) a cube resting on one edge
(B) a smooth cylinder lying on a curved surface
(C) a smooth cylinder lying on a convex surface
(D) none of the above
One end of an elastic string of natural length / and modulus X is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance x, held at rest and then released. The motion is___________________?
(A) a simple harmonic motion
(B) a rectilinear motion with constant speed
(C) a damped oscillatory motion
(D) none of the above
A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be___________________?
(A) E
(B) E/2
(C) 2E
(D) 4E