A bullet hits horizontally and gets embeded in a solid block...

A bullet hits horizontally and gets embeded in a solid block resting on al frictionless surface. In this process: (a) momentum is conserved (b) kinetic energy is conserved (c) both momentum and $\mathrm{K} \cdot \mathrm{E}$. are conserved (d) neither momentum nor $\mathrm{K}_{1} \mathrm{E}$. is conserved

A bullet hits horizontally and gets embeded in a solid block resting on al frictionless surface. In this process:
(a) momentum is conserved
(b) kinetic energy is conserved
(c) both momentum and $\mathrm{K} \cdot \mathrm{E}$. are conserved
(d) neither momentum nor $\mathrm{K}_{1} \mathrm{E}$. is conserved

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Key Concepts

Inelastic Collision

An inelastic collision is one in which the colliding objects stick together or deform, resulting in a loss of kinetic energy in the process. While momentum is conserved in inelastic collisions, the loss of kinetic energy distinguishes them from elastic collisions, making this concept essential to analyzing the energy dynamics in such events.

Conservation of Momentum

This principle states that in an isolated system, where no external forces are acting, the total momentum before a collision is equal to the total momentum after the collision. It is a fundamental concept in mechanics that holds true for all types of collisions, whether elastic or inelastic.

Kinetic Energy Conservation

Kinetic energy is not always conserved in collisions. In elastic collisions, the total kinetic energy is conserved, but in inelastic collisions, some of the kinetic energy is transformed into other forms of energy, such as heat or sound. Understanding when kinetic energy is conserved is crucial for analyzing different collision scenarios.

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