Q1: Pick up the correct statement from the following. The kinetic energy of a body

ANS:C - before impact is more than that after impact

In a collision scenario, it's highly unlikely for the kinetic energy of a body before impact to be greater than that after impact in most real-world situations. However, there are theoretical scenarios where this could occur, but they are not common or practical in everyday experiences. Here's a hypothetical explanation where the kinetic energy before impact could be greater than that after impact: Imagine a scenario where an object is initially moving with a very high velocity, and it collides with another object that is initially at rest. In this situation, the kinetic energy of the moving object before impact could be much higher than the kinetic energy of both objects after impact. However, for this to occur, the collision would need to be perfectly inelastic, meaning the objects stick together after the collision, and kinetic energy is not conserved. In such cases, some of the initial kinetic energy is converted into other forms of energy, such as heat, sound, or deformation of the objects involved. In everyday experiences, such scenarios are rare, and usually, kinetic energy is partially or fully conserved during collisions. In most practical situations, the total kinetic energy after the impact is typically less than or equal to the total kinetic energy before the impact due to energy loss mechanisms like friction, deformation, and sound production. Therefore, while it's theoretically possible for the kinetic energy before impact to be greater than that after impact in specific scenarios, it's not common in real-world situations.