What is the kinetic energy of an object with a mass of #5 kg# that has been in freefall for #1 s#? Physics Work and Energy Energy 1 Answer ali ergin Feb 8, 2016 #E_k=240,59025 J# Explanation: #v=g*t # #v=9,81*1=9,81 " m/s velocity after 1 second"# #"The kinetic energy of an object is given by: "E_k=1/2 *m*v^2# #E_k=1/2 .5 *(9,81)^2# #E_k=240,59025 J# Answer link Related questions How do matter and energy interact? Question #50ca2 Question #242cf Question #5038d Question #50391 What is potential energy? Question #d6576 Question #50cae Question #50cb2 Question #50cb6 See all questions in Energy Impact of this question 1181 views around the world You can reuse this answer Creative Commons License