Brick+Collision

Sean Tietz and Eric Bromber Period 4

Goal: To review for the final using the various equations learned throughout the semester to determine various properties of a cart colliding with a brick. Properties that will be found include: Acceleration, Velocity,Kinetic Energy, Momentum of cart, Impulse at collision, Work Force, and Power.

Procedure: 1. Set up a track to measure the distance the brick moves. 2. Push the cart ith enough force to move the brick about 3 cm. 3. Use sensors to measure velocity and acceleration of both the cart and the brick. 4. Use data like masses and accelerations to find the force necessary to move the brick 3 cm.

Data: Mass of brick: 1.814 kg Mass of Cart: 1.059 kg



Equations: velocity = *d / *t acceleration = *v / *t acceleration = F / m (kg) Force = m x a momentum = m x v Impulse = F x *t Kinetic Energy = (1 / 2) x m x (v x v) Work = F x d x cos (Angle) Power = Work / t
 * = Change in variable

Calculations: Acceleration of Cart: 9.849 m/s/s Acceleration of Brick: 0.1261 m/s/s Kinetic Energy of Cart at 0.2 seconds: 0.5 x 1.059 x 1.934 x 1.934 = 1.98 J Momentum of cart: 1.059 x 1.934 = 2.05 kg x m/s Impulse at collision: -2.05 kg x m/s Work of Cart: 10.43 x Force of Cart: 10.43 N Force of Brick: 0.2287 N Power: