Question

what is the minimum amount of energy required to accelerate horizontally a 3.0g bullet from rest to a speed of 40.0 m/s?
bobpursley
what is 1/2 mass*velocity^2
emilyy
so is it 1/2(3)(40)^2?
bobpursley
no, no, no. mass has to be in Kilograms.
emilyy
oh right. so 1/2(.003)(40)^3