A train travels from station a to station b with a speed of 36km/hr .and returns to a with a speed of 54 km/hr. what is the average velocity and average speed of train
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Average speed = total distance
total time
= 2(Distance b/w A to B)/ Total
Time
= 2
Total time = x/40 + 3x/30
substitute the value of total time in
the denominator
Avg Speed = 2x/ (7z/120) = 240/7
km/hr
Average speed = total displacement
total time = 0
Because net displacement of the is zero, initial
and final position is same.
total time
= 2(Distance b/w A to B)/ Total
Time
= 2
Total time = x/40 + 3x/30
substitute the value of total time in
the denominator
Avg Speed = 2x/ (7z/120) = 240/7
km/hr
Average speed = total displacement
total time = 0
Because net displacement of the is zero, initial
and final position is same.
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