Acceleration describes the change in speed or velocity of an object. So acceleration can be a vector and a scalar value. In this course you will deal with mostly vector calculations. The general formula for acceleration is;
More specifically, when an object is already moving prior to acceleration, the formula can be written as;
where u = initial velocity, v = final velocity, t = time taken.
If velocities are stated and shown as a vector diagram, you MUST make sure that you subtract the inititial velocity (shown as Vi in this diagram). It is the equivalent of -u in the above formula.
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