A. what is the kinetic energy of a 1 kg ball thrown in the air with an initial velocity of 30 m/s
b. how high did the ball travel? ke=pe

     By Definition of Kinetic Energy, it is valid:



     Using the Torricelli's Equation in vertical direction on the maximum height, remember that the final velocity at this point is zero, we have:



If you notice any mistake in my english, please let me know, because my english level is still low.

Answerwavelength;