A block is connected to a relaxed spring and kept on a smooth floor. The block is given a velocity towards the right. Just after this:
1. | the speed of block starts decreasing but acceleration starts increasing. |
2. | the speed of the block as well as its acceleration starts decreasing. |
3. | the speed of the block starts increasing but its acceleration starts decreasing. |
4. | the speed of the block as well as acceleration start increasing. |
A mass m is suspended from two springs of spring constant as shown in the figure below. The time period of vertical oscillations of the mass will be
1.
2.
3.
4.
One end of a spring of force constant \(k\) is fixed to a vertical wall and the other to a block of mass \(m\) resting on a smooth horizontal surface. There is another wall at a distance \(x_0\) from the block. The spring is then compressed by \(2x_0\)
1. | \(\frac{1}{6} \pi \sqrt{ \frac{k}{m}}\) | 2. | \( \sqrt{\frac{k}{m}}\) |
3. | \(\frac{2\pi}{3} \sqrt{ \frac{m}{k}}\) | 4. | \(\frac{\pi}{4} \sqrt{ \frac{k}{m}}\) |
Which one of the following is not an example of simple harmonic motion?
1. | the motion of the Moon around the Earth as observed from Mars. |
2. | the ripples produced when a stone is dropped into a tank of water. |
3. | a weight moving up and down at the end of a spring. |
4. | the motion of a ball on the floor. |
A mass is connected to a spring and it vibrates up and down, forming a simple harmonic system. Which of the following is/are correct?
(a) | The kinetic energy of the mass is at a maximum halfway up. |
(b) | The potential energy of the system is at a maximum at the top of the mass's motion. |
(c) | The potential energy of the system is at a maximum at the bottom of the mass's motion. |
Choose the correct option from the given ones:
1. | (a), (b) and (c) | 2. | (a) and (b) only |
3. | (b) only | 4. | (c) only |
1. | Spring constant | 2. | Angular frequency |
3. | (Angular frequency)2 | 4. | Restoring force |
1. | \(A_1 \omega_1=A_2 \omega_2=A_3 \omega_3\) |
2. | \(A_1 \omega_1^2=A_2 \omega_2^2=A_3 \omega_3^2\) |
3. | \(A_1^2 \omega_1=A_2^2 \omega_2=A_3^2 \omega_3\) |
4. | \(A_1^2 \omega_1^2=A_2^2 \omega_2^2=A^2\) |