Question

please tell physics answer Q11​

Answer 1

Answer:

Given that,

Time t=2.5min

Distance d=2km

Now, firstly for half distance

v= d/t

t= d/v

t= 60*60/40

t=90s

Now, total time is

t=150−90

t=60s

Now, the speed is

v= t/d

v= 1

1×60

v=60km/h

Hence, the speed is 60km/h

Answer 2

Answer:

b). 60 km/ hr. is right

Step-by-step explanation:

given that,

t = 2.5 min

d= 2km

now, first for half distance

v = d/t

t= d/v

t= 60*60/40

t= 90s

now, total time is

t= 150-90

t=60s

now, the speed is

v= d/t

v= 1*60/1

v= 60 km/hr

hence, the speed is 60 km/ hr

hope it helps u