Kinetic energy is calculated by using formula:
Ek = 1/2*m*v^2
Now we replace values of mass and speed in this formula.
Ek = 1/2*10*3^2 = 45.0J
When you have a formula and all variable values are given in the text of question just replace variable values in equation and find the final value.
.6 MPM
T = Time
D = Distances
S = Speed
to get speed you Divide your Distances by Your time
hope I helped! :P
but the points are only 25
