I'm struggling in my intro physics classe because I cannot bring myself to participate in class discussions or seek help from others when I'm confused. I was afraid of looking stupid by saying something wrong in class and looking incompetent by asking for help. This "strategy" has blown up in my...
If an object is dropped from height, h, then gravitational energy is E = mgh, but kinetic energy when object hits the ground is E=(1/2)mv^2. Conservation of energy states that E(g)=E(k). Why does kinetic energy not depend on height object was dropped?