Question

3) A train first travels for 30 minutes with a velocity 30 km/h
and then for 40 min with a velocity 40 km/l in the
same direction
calculate CD Total distance travelled
(1) Average velocity of the train​

Answer 1

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AVERAGE VELOCITY =

$\frac{u + v}{2}$

$= \frac{30 + 40}{2}$

$= 35km \: {h}^{ - 1}$

Answer 2

Answer:

250/7

take V avg = (v1t1+v2t2)/t1+t2