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. rC. r2 D. 1/r where r is the distance of’the particle from centre of…
At the instantaneous center, the velocity of the moving lamina at any instant is_________________? A. zero(Correct) 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 surfaceD. 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…
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(Correct) C. 2E D. 4E
If the kinetic energy and potential energy of a simple harmonic oscillator of amplitude A are both equal to half the total energy, then the displacement is equal to_________________? A. A B. A/2C. A/V2 D. AV2
It is observed that in a certain sinusoidal oscillation, the amplitude is linearly dependent on the frequency f. If the maximum velocity during the oscillation is V, then V must be proportional to_________________? A. f B. 1/f C. 1/f2D. f2
A particle of mass 2 kg executes simple harmonic motion of frequency 6/71 Hz and amplitude 0.25 m. Its maximum kinetic energy is___________________? A. 4.5 JB. 9.0 J C. 12.0 J D. 18.0 J
If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is___________________? A. proportional to AB. proportional to A2 C. proportional to 1/A2 D. independent of A
A stone is thrown up a slope of inclination 60° to the horizontal. At what angle to the slope must the stone be thrown so as to land as far as possible from the point of projection ? A. 15°…