E. Very short answer type questions.
1. What led to the invention of aeroplane?
2. What do you mean by rest?
3. What do you understand by motion?
4. What is meant by uniform motion?
5. Give two examples each of periodic and non-
periodic motion.
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Answers
Answer:
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Explanation:
An airplane or aeroplane (informally plane) is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, propeller, or rocket engine. ... The Wright brothers invented and flew the first airplane in 1903, recognized as "the first sustained and controlled heavier-than-air powered flight".
To rest means to relax into something and let it support you. Rest yourself on the couch for a while, if you're tired. The word rest comes from the German rasta meaning "league of miles." If you walked that far, you'd need a good rest too.
phenomenon in which an object changes its position over time. ... The motion of a body is observed by attaching a frame of reference to an observer and measuring the change in position of the body relative to that frame with change in time
If an object is travelling with uniform motion, it is moving in a straight line at a constant speed. ... an object falling at terminal velocity experiences the same air resistance as its weight.
An example of periodic is a person's birthday happening once each year. An example of periodic is a person going to their favorite restaurant every once in awhile.
The running of a batsman between the wickets.
Motion of the pestle in a mortar when operated manually.