a body goes from A to B with a speed of 60 km per hour and then returns starting point with a speed of 40 kilometre per hour find i-the average speed ii- the average velocity of the body
Answers
Answered by
0
ANSWER
Let distance from A to B=x km= distance from B to A.
Time taken by train from A to B =
60
x
hr
Time taken by train from B to A =
80
x
hr
Total time taken by train =
60
x
+
80
x
=
240
7x
hr
average speed=
total time
total distance
=
240
7x
2x
=
7
480
km h
−1
Do it in the Same way
Answered by
0
Answer:
Step-by-step explanation:
Let distance from A to B=x km= distance from B to A.
Time taken by train from A to B =
60
x
hr
Time taken by train from B to A =
80
x
hr
Total time taken by train =
60
x
+
80
x
=
240
7x
hr
average speed=
total time
total distance
=
240
7x
2x
=
7
480
km h
−1
Do it in the Same way
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