搜搜考试网看的懂英文的帮我解决一下物理题,
来源：学生作业帮 编辑：搜搜考试网作业帮 分类：英语作业 时间：2024/06/14 10:46:29
看的懂英文的帮我解决一下物理题,
Using dimension,show that a change in work(W=Fs) equals a change in kinetic energy(KE=1/2 mv^2).
Some dimensions given:length(distance) L; mass M;Time T
Using dimension,show that a change in work(W=Fs) equals a change in kinetic energy(KE=1/2 mv^2).
Some dimensions given:length(distance) L; mass M;Time T
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
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