two objects were lifted by a machine. one object had a mass of 2 kilograms and was lifted at the speed of 2 m/s. the other had a mass of 4 kilograms and was lifted at a rate of 3 m/s. which object had more kinetic energy while it was being lifted?"
to find the kinetic energy KE=1/2 × mass × velocity ^2 for object 1 ke= 1/2(2)(2^2)=4 J for object 2 ke= 1/2(4)(3^2)=18J meaning object 2 as more kinetic energy
