1. An automobile traveling at 25 km/hour has kinetic energy equal to 1x 10^4J. a What is the mass of the car?

b. If the velocity of the car is increased to 45 km/hour, what is its kinetic energy?

c. If the velocity is increased to 80 km/hour, what is its kinetic energy?

Explanation:

It is given that,

Speed of an automobile is 25 km/h or 6.95 m/s

Kinetic energy of the automobile is

(a) Kinetic energy of automobile s given by :

(b) If the velocity of the car is increased to 45 km/hour or 12.5 m/s, new kinetic energy becomes :

(c) If the velocity is increased to 80 km/hour, 22.23 m/s, So

Hence, this is the required solution.

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

an electric circuit