Define work done. What are the different types of work done? Explain giving reasons.
Answers
Work is defined as the force acting on a body which is responsible for the displacement of the body. Work is measured as a constant force and is the dot product of force and displacement.
W = F.S.cosq
Where,
F is the force
S is the displacement
q is the angle between F and S
Work is a scalar quantity and is the product of two vector quantities. Depending on the value of q, there are three types of work:
When q = 0°, work is said to be positive. Stretching of the spring is an example of positive work as the force is acting in the direction of displacement of the spring.
When q = 180°, work is said to be negative. The frictional force is an example of negative work as the force is acting in the opposite direction.
When q = 90°, work is said to be zero. For a body moving a circular path with a centripetal force acting on it with zero speed, the force will be at the right angle
Answer:
The 5 Types of Work That Fill Your Day
Reactionary Work. In the modern age, most of our day is consumed by Reactionary Work, during which we are focused only on responding to messages and requests – emails, text messages, Facebook messages, tweets, voicemails, and the list goes on. ...
Planning Work. ...
Procedural Work. ...
Insecurity Work. ...
Problem-Solving Work.
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