Few pitchers utilize their fastballs more frequently than J.A. Happ of the Phillies does, as he throws his four-seamed heater 71 percent of the time. Unlike Max Scherzer, who throws his fastball at a ...

Displacement close displacementA distance measured in a specified direction. is the distance moved in a straight line, in a given direction, from the starting point. Displacement = 24 m east. Velocity ...

\(gradient = \frac{change~in~y}{change~in~x} = \frac{change~in~distance}{change~in~time} = \frac{change~in~metres}{change~in~seconds} = m/s.\) The gradient of a ...