Question

A crane lifts a car with 9023 J of kinetic energy. The crane lifts the car with a speed

of 2.8 m/s. What is the mass of the car?

Answer 1

m = 2301.8 [kg]

Step-by-step explanation:

This problem can be solved in an easy way using the definition of kinetic energy, in this way you can clear the mass, depending on the known variables.

`E_(k)=0.5*m*v^2\\replacing\\\\9023 = 0.5 *m*(2.8)^2\\m = 2301.8[kg]`