One Dimensional Kinematics Constant Acceleration:

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Presentation transcript:

One Dimensional Kinematics Constant Acceleration: If a body is undergoing a constant acceleration, we can analyze the motion and come up with several equations that will describe the motion. Start with the equation for acceleration: let

One Dimensional Kinematics Constant Acceleration: Here are two more important equations:

One Dimensional Kinematics Constant Acceleration: So here are our three kinematic motion equations v as function of time x as a function of time x as function of velocity

One Dimensional Kinematics Constant Acceleration: These equations simplify if initial conditions are zero. It is perfectly acceptable to use the simplified equations when solving problems. or

Practice problem A A car undergoes an average acceleration of 3.55 m/s2. If the car is accelerated for 8.50 seconds, how far has it traveled?

Practice problem B A truck undergoes an average acceleration of 2.50 m/s2 as it speeds up. If it starts from rest, and accelerates for a distance of 875 m, how much time did it take to cover the distance?

Practice problem C A car accelerates at 7.55 m/s2. If it accelerates for 4.25 s, what speed does it reach?