All right people, Asian Physics Geek Wednesday O’clock. That means we’re going to talk physics. To answer the question above you need to understand 3 things:
1.We need to overcome inertia (Newton’s first law)
2.by having a force applied against us (Newton’s second law, F=ma)
3.We do this by applying a large, well-directed force against the Earth, which applies an equal, and opposite reaction against us (Newton’s third law).
All of these factors put together will have a bearing on our acceleration and the force of gravity acting against us (Newton’s Law of Gravitation), means that to jump high, we need to produce a large amount of vertical force, or have lower body mass.
What does this actually mean? It’s a ridiculously long-winded way of saying get strong and powerful whilst not getting fat to get high. (See what I did I there?)