Answer:
Americans experienced a dramatic rise in the availability of new time-saving appliances for the household during this period.
Explanation:
Answer:
Task Analysis
Explanation:
In the example in the book, Juke helped a tennis coach improve her players' skills. But before Juke intervened, he and the coach broke each skill into its detailed component parts. This is an example of task analysis.
It is the process of in which a we learn about ordinary users by observing them in action and to understand in detail that how they are performing their tasks to achieve their objectives.
Speed is the distance travelled in a time period but acceleration is the change in the speed of body in a given period.
The S.I. units are
Speed=ms^-1
Acceleration=ms^-2
