Un automobile sale de la ciudad de Managua a las 10hrs y legal al Rama a las 17 hrs despues de recorrer 420klm.
A) Cual fue la velociraptor media de ese automovil?

60 km/h

Explanation:

The average velocity of an object is given by:

where

d is the displacement of the object

t is the time elapsed

We must note that velocity is a vector, so it has both a magnitude and a direction, which is the same direction as the displacement.

In this problem, we have:

d = 420 km is the displacement of the car (from Managua to Rama)

The car leaves at 10:00 and arrives in Rama at 17:00, so the time taken is

t = 17 - 10 = 7 h

Therefore, the average velocity of the car is

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min