Centre of mass, collision, momentum

In summary, the centre of mass is a point in an object or system where the mass is evenly distributed and the object is in balance. It can be calculated by taking the weighted average of positions or by finding the point where net torque is zero. A collision is an event where objects exchange energy and momentum, and it can be elastic or inelastic. Momentum is a measure of an object's motion and is conserved in a collision. Factors such as mass, velocity, angle, elasticity, and external forces can affect the outcome of a collision.
  • #1
karanbir
7
0
Two blocks m1 and m2 are connected by an ideal spring of force constant k. The blocks are placed on smooth horizontal surface. A horizontal force F acts on the block m1. Initially spring is relaxed, both the blocks are at rest.
What is maximum elongation of spring?

i think it would be when both the objects are moving with same velocity, so i applied law of conservation of energy but the equation has too many variables.
 
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  • #2
Please honour us with your working so far.
 

1. What is the centre of mass?

The centre of mass is a theoretical point in an object or system where the mass is evenly distributed and the object is in perfect balance. It is also known as the center of gravity.

2. How is the centre of mass calculated?

The centre of mass can be calculated by taking the weighted average of the positions of all the particles in a system, with the weights being the masses of the particles. It can also be calculated by finding the point where the net torque on the system is zero.

3. What is a collision?

A collision is an event where two or more objects come into contact with each other and exchange energy and momentum. Collisions can be elastic, where no energy is lost, or inelastic, where some energy is lost.

4. How does momentum relate to a collision?

Momentum is a measure of an object's motion and is calculated by multiplying its mass by its velocity. In a collision, the total momentum of the system before the collision is equal to the total momentum after the collision, according to the law of conservation of momentum.

5. What factors affect the outcome of a collision?

The outcome of a collision can be affected by factors such as the masses and velocities of the objects involved, the angle of collision, and the elasticity of the collision. Friction and external forces can also play a role in altering the outcome of a collision.

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