1.

1) Write SI Unit of work.2) What is Scalar product?3) Mention the expression for potential energy of a string.

Answer»

Ans :- 1.The SI unit of work is thejoule(J), which is defined as the work expended by a force of onenewton through a displacement of one metre.

2. Scalar Productof Vectors. Thescalar productand the vectorproductare the two ways of multiplying vectors which see the most application inphysicsand astronomy. Thescalar productis also called the "inner product" or the "dot product" in some mathematics texts.

3. The energy stored = (kx^2)/2, where x is the final elongation.



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