Question

Obtain expression for potential energy of a spring attached to mass m moving on a frictionless horizontal surface by graphical method.​

Answer 1

Answer:

chemistry and manufacturing, electrolysis is a technique that uses direct electric current to drive an otherwise non-spontaneous chemical reaction. Electrolysis is commercially important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell.

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Answer 2

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To study this ,consider an electric spring of negligibly small mass .One end of the spring is attached to the rigid wall and another end of spring is attached to a block of mass m which can move on smooth frictionless horizontal surface

Consider the figure given below:-

• We now take the block from its un-stretched position to a point P by stretching the spring

• At this point P restoring force is exerted by the spring on the block trying it bring it back to the equilibrium position.

• Similar restoring force developed in the spring when we try to compress it

• For an ideal spring ,this restoring force F is proportional to displacement x and direction of restoring force is opposite to that displacement

• Thus force and displacement are related as

• F α x or F= - kx

• where K is called the spring constant and this equation (16) is known as Hook's law.negative sign indicates that force oppose the motion of the block along x