1. Remove the thread from the cart. Press the spring as far as it will go, determine the shrinkage (x) of the spring and report in table 3-1 find EPE stored in the spring
2. Carefully raise the other end of the track until the the track is at 4 incline, as shown in figure 3.1. Use the stand and the clamp to secure the track.
3. Measure the total mass of the cart and report in table 3-1. Place the cart back on the track against the end stop.
4. Release the cart by tapping at the small releasing button; report the distance d the travels up the incline track from the highest position in table 3-1.repeat at least 5 times. Choose only the maximum distance to find h. determine GPE.
5. Report GPE obtained from step 4 in table 3-2. Find percent difference between the EPE and GPEs.
6. Place an additional mass to the cart, press the spring, and repeat steps 3-7.