An automobile travels on a straight road for 55 km at 20 km/h. It then continues in the same direction for another 60 km at 55 km/h. What is the average velocity (km/h) of the car during the full 115 km trip

Given :

Speed of automobile for first 55 km , .

Speed of automobile for first 60 km , .

To Find :

Average velocity of the full trip .

Solution :

We know , average velocity is given by :

Now , time is given by :

So ,

Therefore , the average velocity (km/h) of the car during the full 115 km trip is 29.94 km/h .

Hence , this is the required solution .

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

this is poiselle's equation from fluid mechanic in physics. mech eng