What is kinematics?
The features or properties of motion in an object. Kinematics consists of variables such as speed,displacement, time , velocity and acceleration. We use these variables in kinematic formula's to measure various unknown. In cricket we can use kinematics to measure everything from the maximum speed that your throwing from to the height that the ball was thrown from .
Uniform Motion in the Horizontal direction graphs
In the horizontal direction the displacement of the ball is steady. The relationship displayed in the displacement/time graph is linear because the velocity is constant which means the position/time increases by the same amount. Since velocity is constant acceleration will stay constant.
UNiform motion in the Vertical direction
In the vertical direction the displacement time graph , graphs the path of the ball. The ball starts of with zero initial velocity but as you start running you start accelerating backwards as the ball takes the first bounce your now accelerating in the positive direction that's why the velocity time graph is changing. The acceleration is constant through out but velocity changes from negative to positive.
Kinematic calculations:
Below are some calculations that were found using the personal results of Rachit Desai. Max Speed,Acceleration and Projectile Motion was calculated from the results of him bowling and his wind up time.
Max Speed
Acceleration
Horizontal projectile motion
This projectile motion problem is projectile motion in the horizontal direction, that is why there is no angle. The reason that we calculated for height is because we measured the range. Because we can use range to solve flight time and vice versa this problem is a projectile motion just instead of the normal ones that we see that are in the vertical direction this projectile motion is in the horizontal direction.