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emmasim [6.3K]
3 years ago
13

a train covers half of its journey with a speed of 20 metre per second and the other of with the speed of 30 metre per second th

e average speed of the pain during the whole journey is​
Physics
1 answer:
Andrews [41]3 years ago
8 0

Answer:

25 meters per second

Explanation:

2 halves so you find the average of the two by adding 20+30=50 then dividing it by number of halves, this is 2.

50/2=25

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