Question

看的懂英文的帮我解决一下物理题,

Answer 1

symbol:force(F),mass(m),acceleration(a),distance(s),time(t),work(W),velocity(v),kinetic energy(ke)

a=F/m

s=1/2*a*t^2=1/2*F*t^2/m

W=Fs=1/2*F^2*t^2/m

v=at=F*t/m

ke=1/2*m*v^2=1/2*F^2*t^2/m

W=ke