Saturday, November 1, 2014

Personal Injury Solicitor Can Do For You

You know you need a help when you have sustained personal injuries for some reason. Mostly, you will be dealing with claims. These can be claims from your insurance company, or from a third party such as a product manufacturer. These claims are mostly complicated as there are legal implications. For this reason, you need to engage the services of a personal injury solicitor.

The responsibility of the personal injury solicitor is to give you proper advice on the right course of legal action to take in order to maximize your claims. Sometimes, people may not get their rightful compensation amounts because they are ignorant about the law. As a result, they take no action at all.

For example, if a baby gets injured by a defective baby pram, the consumer can file suit against the product manufacturer. Of course, in such a scenario, you will have to proof that the product is indeed defective, and the accident is not caused by negligence. A personal injury solicitor will help you determine whether you have a case for such claims.

There are many types of claim available, and a personal injury solicitor should offer comprehensive services so that a client gets maximum compensation. For instance, there are accident at work claims, road traffic accident claims, head and brain injury claims, industrial disease claims, spinal injury claims, defective product claims, holiday accident claims, fatal accident claims and more.

Saturday, September 21, 2013

The Law of Conservation of Energy

Law of conservation of energy states that energy can neither be created nor destroyed. Energy can only be conserved. Take the case of throwing a ball upwards. What are the forces that act on the ball?. One is the weight of the ball that causes it to be pulled down. The next is the upward force on the ball that is provided when the ball leaves the hand.

How far will the ball travel upwards?. This question can be answered easily by using the law of conservation of energy. When the ball is thrown up the energy it has is due to its velocity or kinetic energy. During its motion upwards the ball has both kinetic energy and potential energy. The speed or the velocity of the ball will be maximum when it leaves the hand and will be zero when it reaches the maximum height. At any point in time the velocity will reduce slowly ( this is called as retardation as opposed to acceleration where the veolocity increases continuosly). The maximum height travelled by the ball can then be determined by equating potential energy at the destination ( here Kinetic energy is equal to 0 as the ball is at rest), to the kinetic energy at the start of the motion ( here the potential energy is equal to 0).

Without the force of gravity we would not be attracted downwards to our planet and so we will be always floating upwards. The LCE can be used to make important derivations even the object that is thrown upwards does not go up in the vertical direction ( or goes in a parabolic path).

Imagine a marble that is just rolling downwards on a slope and is made to go into a circular ring, energy is conserved in this case as well. One can use the Law of conservation of Energy to determine the maximum time that the marble will be inside the circular hoop.

How are we able to walk?. We walk because of the frictional force that exists between the foot and the earths surface. If friction did not exist we would not be able to stop walking. A ball that is rolling on the floor stops at some point of time due to friction between the earths surface and the ball.

Law of Conservation

When a roller skater rotates on her scates, she travels faster is she makes a circle in a smaller radius. This is because a quantity termed as Angular Momentum (AM, ang Mom) is conserved in the process. Angular momentum is given by the equation = I * w * w. I is termed as the Moment of inertia. The angular velocity is a vector quantity implying that localised direction of travel is important in a circular motion.

When a scater suddenly reduces her radius of motion, her moment of inertia decreases. In order for the angular momentum of travel to be conserved the velocity increases. In other words if she goes around in a smaller circle her speed increases.

Let us take the case when she travels in a bigger circle than before. In this case too, angular momentum is conserved. In this case the moment of inertia increases. So in order for the total AM to be conserved her speed decreases.

This law is termed as the law of conservation of ang mom it applies to all objects that are rotating in a circular motion.

An analogy to the same law is the law of conservation of momentum which applies to motion in straight lines. In this case the momentum of the system of bodies that are colliding is conserved. So the momentum before the collision is MV + M1V1 where M and M1 are two different masses which travel at different speeds. So the total momentum of the system is conserved. AM and linear momentum are vectors implying that the quantity is dependent upon the direction.