Question

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

Answer 1

`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"`