(b) Define the term 'uniform acceleration'. Give one example of a uniformly ac
39. The distance between Delhi and Agra is 200 km. A train travels the first 100 km a
fast must the train travel the next 100 km, so as to average 70 km/h for the wh
moin trouols the first 15 km at a uniform sneed of 30 km/h: the next 75
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Answered by
1
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
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