Motion: Using the spring to roll a cart up a slope

 Fit two large brackets (LB1) at the end of the track, one under the track and one upright using the 50 mm bolt (BLT2) and a wing nut (WN2).

 Position the track at the 10 cm mark on the vertical pillar to give an angle of about 5˚.

 Attach a spring to the cart.

 Place the cart at the bottom of the track. Start logging and push the cart to compress the spring against bracket.

 Release the cart and let the spring push the cart up the track. Let the cart run up the track and catch it as it returns.

Note: The suspended mass is only to tension the thread running over the pulley of the Rotary Motion sensor, it should only have a very minimal effect on the motion of the cart.

BLT2

LB1

SF1 SPR1 BF2 WN2

LB1