A. 4.5 J
B. 9.0 J
C. 12.0 J
D. 18.0 J
Related Mcqs:
- If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is___________________?
A. proportional to A
B. proportional to A2
C. proportional to 1/A2
D. independent of A - 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/2
C. A/V2
D. AV2 - The ratio of kinetic energy and potential energy of a simple harmonic oscillator, at a displacement equal to half its amplitude is given by__________________?
A. 1:2
B. 1:1
C. 2:1
D. 3:1 - A particle is executing simple harmonic motion in a line 1.0 m long. If the time of one complete vibration is 1 sec, then the maximum velocity of the particle is___________________?
A. 1.00 m/sec
B. 1.57 m/sec
C. 3.14 m/sec
D. 6.28 m/sec - A simple pendulum of length 1 has an energy E when its amplitude is A. If its amplitude is increased to 2 A, the energy becomes____________________?
A. E
B. E/2
C. 2E
D. 4E - 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 - In a simple harmonic motion, the position of equilibrium is always_________________?
A. stable
B. unstable
C. neutral
D. none of the above - A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is___________________?
A. 1/3
B. 2/3
C. 1/9
D. 8/9 - A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________?
A. 50 J
B. 150 J
C. 200 J
D. 400 J