# Point Kinematics

## Parameter Identification, Acceleration

A bioengineer studying the mechanics of bird flight models the acceleration of the snow petrel as an equation of the form

*a = C + D t*, where*C*and*D*are constants. Measurements obtained from videotape indicate that one bird requires*1.42 s*and a distance of*4.3 m*to take off and is moving at*6.1 m/s*when it lifts off. What are the constants*C*and*D*?