Question

1. Why there is necessity of defining impulse?
2. Give the uses of dimensional analysis.
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Answer 1

Explanation:

Because of the impulse-momentum theorem, we can make a direct connection between how a force acts on an object over time and the motion of the object. One of the reasons why impulse is important and useful is that in the real world, forces are often not constant.andDimensional Analysis is a very basic aspect of measurement and has many applications in real life physics. We use dimensional analysis for three prominent reasons, they are: Consistency of a dimensional equation. Derive relation between physical quantities in physical phenomena.

Answer 2

Answer:

Impulse in Physics is a term that is used to describe or quantify the effect of force acting over time to change the momentum of an object. It is represented by the symbol J and usually expressed in Newton-seconds or kg m/s.

Explanation: