Question

a train covers half of its journey with a speed of 30m/s and the other half with a speed of 40 m/s. calculate the speed of the train during the whole journey​

Answer 1

Answer:

70m/s

Explanation:

first half journey with a speed = 30m/s

second half journey with a speed = 40m/s

Total journey speed of a train = first half + second half

=30 + 40

= 70 m/s