Question

please do it...................

Answer 1

can you write and give this as a question

Answer 2

For the first leg of the journey,

V = 0 + α  t1

So  V = α  t1

for the second leg of journey of duration  t - t1 :

0 = V - β (t - t1)

0 = α t1 - β t + β t1

t1 = β t / (α + β)

V =  αt1 = α β t / (α + β )