What is the kinetic energy of an object with a mass of # 16 kg# that has been in freefall for # 6 s#?

1 Answer
Nov 1, 2016

Answer:

#E_k=27715.9968" Joules"#

Explanation:

#v=g*t#

#v:"velocity of object for t=6 "#

#g:"acceleration of gravity g=9.81 "m/s^2#

#v=9.81*6=58.86" "m/s#

#"The kinetic energy of an object is calculated by :"E_k=1/2*m*v^2#

#m:"mass of object"#

#v:"velocity of object"#

#E_k:"The kinetic energy of object"#

#E_k= 1/cancel(2) * cancel(16)*(58.86)^2#

#E_k=8*3464.4996#

#E_k=27715.9968" Joules"#