2.2 Forces

IB Physics: 2.2 Forces

So far we have been dealing with movement. We can describe motion in terms of displacement, velocity and acceleration and solve problems using the "suvat" equations provided acceleration is constant. But what makes things move? If we just had the observations of stars and planets to go on this would be a very difficult question to answer. We need to look in the lab and in our imaginations because we cannot observe completely...

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