Average speed of a body is the ratio of distance traveled by a body in the given time.
- A) The elapsed time for Trial B is 3 seconds.
- B) The average speed for Trial B is 1.3 m/s.
What is average speed?
Average speed of a body is the ratio of distance traveled by a body in the given time.
Given information-
The distance traveled in trial A and B is 4 m.
Initial time for trial A is 2 s and final time for trial A is 4 s.
Initial time for trial B is 3.5 s final time for trial B is 4.5 s.
The elapsed time for Trial B is 1.5 s and the average speed for Trial B 2.7 m/s.
- A)The elapsed time for Trial B-
As the elapsed time is the difference of the final time to the initial time. Thus, the elapsed time for Trial B
[tex]t_b=4.5-1.5\\t_b=3\rm s[/tex]
Hence the elapsed time for Trial B is 3 seconds.
- B) The average speed for Trial B-
Average speed of a body is the ratio of distance traveled by a body in the given time (elapsed time).Thus, the average speed for Trial B-
[tex]v_b=\dfrac{4}{3}\\v_b=1.3\rm m/s.[/tex]
Hence the average speed for Trial B is 1.3 m/s.
Thus,
- A) The elapsed time for Trial B is 3 seconds.
- B) The average speed for Trial B is 1.3 m/s.
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