A bullet m = 0.001 kg moves with a speed of 500 m/s and strikes a block M = 2 kg at rest. After the collision the bullet becomes embedded into the block. The block is attached to the end of a spring k = 120 N/m. What is the initial kinetic energy of the bullet? What is the speed of the bullet-block system after the collision? What is the kinetic energy of the bullet-block system after the collision? What is the maximum elastic potential energy when the block comes to rest? What is the maximum compression of the spring? What is the period of oscillation
Simple harmonic motion
Simple harmonic motion is a type of periodic motion in which an object undergoes oscillatory motion. The restoring force exerted by the object exhibiting SHM is proportional to the displacement from the equilibrium position. The force is directed towards the mean position. We see many examples of SHM around us, common ones are the motion of a pendulum, spring and vibration of strings in musical instruments, and so on.
Simple Pendulum
A simple pendulum comprises a heavy mass (called bob) attached to one end of the weightless and flexible string.
Oscillation
In Physics, oscillation means a repetitive motion that happens in a variation with respect to time. There is usually a central value, where the object would be at rest. Additionally, there are two or more positions between which the repetitive motion takes place. In mathematics, oscillations can also be described as vibrations. The most common examples of oscillation that is seen in daily lives include the alternating current (AC) or the motion of a moving pendulum.
A bullet m = 0.001 kg moves with a speed of 500 m/s and strikes a block M = 2 kg at rest. After the collision the bullet becomes embedded into the block. The block is attached to the end of a spring k = 120 N/m.
- What is the initial kinetic energy of the bullet?
- What is the speed of the bullet-block system after the collision?
- What is the kinetic energy of the bullet-block system after the collision?
- What is the maximum elastic potential energy when the block comes to rest?
- What is the maximum compression of the spring?
- What is the period of oscillations?
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